Re: [meteorite-list] Meteorite Picture of the Day
Yes, Graham, it does not load up. Click instead on " from 19 December 2016" and you can see the original photo! Cheers, Bernd (in Germany) > Graham Ensor via Meteorite-list hat > am 19.12.2020 11:56 geschrieben: > > > Anyone else finding that the picture of the day does not load up? > > On Sat, Dec 19, 2020 at 9:10 AM Paul Swartz via Meteorite-list > mailto:meteorite-list@meteoritecentral.com > wrote: > > > > Today''s Meteorite Picture of the Day: Toluca > > > > Contributed by: Tomasz Jakubowski > > > > http://www.tucsonmeteorites.com/mpodmain.asp?DD=12/19/2020 > > __ > > > > Visit our Facebook page https://www.facebook.com/meteoritecentral > > and the Archives at http://www.meteorite-list-archives.com > > Meteorite-list mailing list > > Meteorite-list@meteoritecentral.com > > mailto:Meteorite-list@meteoritecentral.com > > https://pairlist3.pair.net/mailman/listinfo/meteorite-list > > > > > __ > > Visit our Facebook page https://www.facebook.com/meteoritecentral and the > Archives at http://www.meteorite-list-archives.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > https://pairlist3.pair.net/mailman/listinfo/meteorite-list > __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Archives
Hi Chris, Same here, ...happened just a few minutes ago :-( Best Christmas wishes, Bernd (in Germany) To: Meteorite-list@meteoritecentral.com cspr...@islandnet.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Barwell, the Christmas Eve Meteorite
Happy Birthday, Barwell! Bernd (in Germany at 00.35 local time ;-) -- On December 24, 1965, a Christmas present of sorts fell to the ground around 16:20 hrs, when a brilliant fireball swept across southern England from a south -southwesterly direction and landed in Barwell accompanied by a tremendous explosion caused by the exploding meteorite that went down in history as the Christmas Eve meteorite. The bolide must have been extremely bright. Some eyewitnesses say it was brighter than the sun, others say it was almost twice as bright as Venus. There are also reports of color changes during atmospheric descent. Local residents noted a large explosion, the sky suddenly lit up, a whizzing noise was heard, there was a loud roar, a low rumbling noise, a screaming sound from a low-flying object directly overhead, a loud rustling noise after the explosion, a sudden thud as something hit the ground, a terrible crack, and also electrophonic phenomena. When one local picked up a strange-looking stone about as big as his hand, he immediately threw it down again because it felt warm. This stone had even left a small crater in the asphalt road. Another Barwell resident found a dent in the hood of his automobile and a white stone on the ground weighing between six and seven pounds. News of the actual fall was slow to spread but when it did, hell broke loose because the British Museum had promised financial rewards for each and every find. Several larger fragments and innumerable small stones were located by field parties and local residents. While initial disruption occurred at an altitude of about 25 miles, final disruption probably occurred at a very low altitude above Barwell. The Barwell L5 chondrite has a gray interior, numerous FeNi specks and grayish chondrules that give it a mottled look. Interestingly, some of the fragments at Barwell came in from slightly different directions - maybe due to strong winds high up in the atmosphere because a distinct smoke trail rapidly disappeared. A 17-pounder made a perfectly vertical hole in sandy loam soil to a depth of 27 inches. A 14 ½ ounce fragment penetrated the roof of a local factory. A 7-pound piece lay in an 18-inch hole. A 6-pound chunk was found in a factory backyard partly buried in a cinder heap! Reference: Lancaster Brown P. (1966) The Barwell Meteorite (Sky Telescope, July 1966, pp. 7-11). __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mundrabilla
Hello Jason, Count, Werner + Sandra, and List, Attached Jason, Count, Werner + Sandra will find a color version of the postcard I sent Jeff Kuyken some years ago. Another picture that I took several years ago shows some excellent detail of the spongelike structure that Jason mentions in his post to the MetList. This is a close-up of the 252 kg slab that resides at the MPI Heidelberg. The black white photo shows Siegfried Haag of the MPI Heidelberg while cutting the first slab of the 6.1-ton Mundrabilla II mass, which took him 188 hours! He cut not only one but four ca. 250 kg slabs, which were then distributed as follows: = Smithsonian Institute (Washington, D.C.) = Soviet Academy of Sciences (Moscow) = British Museum (London) = Adelaide Museum (Australia) Merry Christmas and a Prosperous New Year to all our Listees, Listoids, and Listers!!! Bernd (in Germany) __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks from Space Picture of Day - December 22, 2010
Chris wrote: If memory serves Sky Telescope (70's or 80's) had an article with color photos of a a large specimen 'in situ'. Hi Chris and List, Your memory does serve right...well, almost. There was indeed an article in S T, but that was in the February 1967 issue with the largest mass (ca. 12 tons) as a cover photo and there were only black white photos: Wilson R.B., Cooney A.M. (1967) Western Australia's Mundrabilla Meteorite (Sky Tel., Feb. 1967, pp. 72-73). Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Question about lost shipment and what to do.
Mike wrote: Thanks very much it seems most of the time these things have a pleasant ending. You have all given me me a little more hope. Hello Mike and List, Mailing and waiting for packages can be an unnerving project around Christmas time. Your lost shipment reminds me of my NWA 1909 and my NWA 1943 slices from Mike Farmer back in 2003 (October 01) -- a 600$$+ value. The package was already in the hands of the German customs authorities about 16 km (about 10 miles) from where we live and I was haggling with them via telephone over customs fees. They finally agreed to send it to my home address but it never arrived even though I had a photo copy of the customs papers from these customs dudes. More calls ..., etc. followed ... and they informed me the package was possibly on its way back to Tucson. If not, they added, the sender would have to start a tracer :-( On December 17, I received an email from Mike Farmer informing me that the meteorites had arrived back to him, that the packaging had been removed, that the meteorites were loose in the box which was smashed, but the meteorites were fine and undamaged! Mike resent them and the finally arrived (a second time) on Dec 30, 2003! That's 3 months, now ... go figure! Keeping my fingers crossed for your package! Bernd (in Germany) __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Middlesbrough meteorite cast
Gary wrote: Yup, they asked me what, did you folks have a meeting or something?. Seven orders to date. Hmmm, ... but they should get their records straight ;-) The original meteorite was a *Stony Iron (class unknown)* and so has a density somewhere in between a solid lump of rock and a *lump of iron*. Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Double Geminid Photo
Really *Great* shot !!! Breathtaking! Beautiful! Thanks for sharing, Mike! Bernd .. getting ready for snow-shoveling tomorrowmorning To: mike.han...@gmail.com meteor...@meteorobs.org meteorite-list@meteoritecentral.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Aurora Borealis last night (was: Geminid Meteor Shower Count)
Hello mt and List, Sky Telescope, July 1981, p. 86: April's Intense Auroral Display On April 10th, at about 16:55 Universal time, the Sun spewed a solar flare from a region near the center of' its disk. It was a modest flare by solar standards, but the high-energy electrons and protons it sent speeding out into the planetary system were on a collision course with Earth. Their arrival some 58 hours later was nothing short of spectacular, producing an aurora reported = as far south as the Mexican border and Florida. = The associated geomagnetic storm was more intense than any since those resulting from the great solar Flares of August, 1972. - Best pre-Xmas wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Aurora Borealis last night (was: Geminid MeteorShower Count)
Linton wrote: Thanks for posting that, Bernd. My pleasure, Linton! Linton also wrote: large, shifting areas of pink and purplish colors, ... Sky Telescope, July 1981, p. 87: ... a red glow ... Sky Telescope, July 1981, p. 89: ... recorded the aurora's reddening ... Sky Telescope, July 1981, p. 90: ... he found an ill-defined red glow ... Sky Telescope, July 1981, p. 90: ... when the crimson glow began spreading ... Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Aurora Borealis last night (was: Geminid MeteorShower Count)
Good morning Listees and Listoids, Last night Linton also wrote: There were large, shifting areas of pink and purplish colors, rather than the green which is apparently more common. Sky Telescope, July 1981, p. 86: Auroras above 240 km (150 miles) are mainly red from light given off by oxygen atoms. Between 100 and 240 km it is the green light from oxygen that is most apparent, and below these altitudes the red and blue light of nitrogen atoms is strongest. It is likely this latter source was responsible for much of the April [1981] display. Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mineral responsible for green color in Moldavite?
Hello Chris, Elton and List, A decreasing silica content seems to correlate with a gradual change of color from yellow over green towards brown: LDG - almost pure silica = 98% - yellowish or pale green Moldavites = 78-85% - (light) bottle green Average value of 25 bediasites = 71.89-81.31 - dark-brown to light-brown glass Australian tektites = 66.9-68.5% / 70-73% Muong Nong = 67-79% Mar 23, 1998 (former?) list member *Wolfgang Czegka* posted this (excerpts): a) Thorpe and Senftle 1964 stated that the colour of tektites is mostly given by the Fe(II) content and that the brown colour is the result of the presence of Fe(III) and dispersed colloidal particles of metallic iron. b) In a study based on moldavites Bouska et al. 1982 pointed out that the colour is affected both by the total iron content and by the Fe(II)/Fe(III)-ratio. The Fe(III) content is relatively higher in brown moldavites. c) the colour of poisonous green may be related to Cr2O3 (Glass 1984) or to Ni-oxides (Bouska et al. 1982). --- Bottle-green pre-Xmas wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Moldavite Colors
Sterling wrote: while I typed this and checked the figures, the question was answered already... .. nevertheless an *excellent* post and it added valuable information that had not been addressed yet (two-colored moldavites, for example)! Thank you, Sterling, for posting it! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Muong Nong Tektites (was: MOLDAVITE COLORS)
Hello Steve and List, What is a muong nong tektite ... What do they look like and what is the composition? Muong Nong-type tektite characteristics: - they are relatively large and blocky - they are layered - they do not display an aerodynamic shape - they are more internally heterogeneous in texture and chemistry - they have more bubbles than normal indochinites - they have higher volatile element contents - some contain relict minerals - they are related to the normal (splashform) Australasian tektites = similar age = similar chemical and isotopic composition - they represent a more primitive, less altered stage - they mostly come from an approximately 800 by 1100 km area encompassing parts of Cambodia, Laos, Thailand, Vietnam, and southern China Reference: Meteoritical Society, 1992 C.C. Schnetzler (1992) Mechanism of Muong Nong-type tektite formation and speculation on the source of Australasian tektites. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] List of known Rusters?
Hi Bob and List, Then there are the chondrites that get tears in their eyes (bleed). Dhofar 10 comes to mind. .. Oh well, yes! My Dhofar 10 endcut that I purchased in 2001 kept bleeding / oozing for years until it finally surrendered about two years ago. No more chloride tears left! It's been stable since then. Another chondrite that just loves to produce plenty of rusty stains is NWA 2894 (probably L3) even though I know it's been cut and prepared professionally! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Details on Mbale
Hello Marco, Regine, and List, Marco kindly wrote: There is a photograph of the boy in the MAPS article on Mbale. Unfortunately, only a bw photo. A color photo can be found here: C. Smith, S. Russell, G. Benedix (2009) Meteorites (Firefly Books, NHM, London, p. 38) Best pre-Xmas wishes from rainy/snowy S. Germany, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Details on Mbale
Regine inquired: Thanks Marco Bernd, is it the portrait on the left you're talking about or is there another image? http://www.xs4all.nl/~dmsweb/meteorites/mbale/mbale.html Yep, the one on the left! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] David's NWA 6155 - a CK4 with W0 and TKW 53 grams
Hello List, Yesterday my young German fellow meteorite collector David G. offered nine slices of his very fresh, carbonaceous chondrite NWA 6155. It was classified by Tony Irving as a CK4 with a TKW of only (!) 53 grams. Those of you who have already seen the pictures David has taken of this carbonaceous beauty, can, without a doubt, confirm that this *is* a fresh CK4 (hence W0!) and its extremely low TKW certainly make it worth a closer look and a desirable addition to one's collection! Even though the online Meteoritical Bulletin says it is a CK5, it is actually a CK4 (Tony Irving, pers. comm. with David). This is your chance to acquire a stunningly fresh CK4 chondrite. Our young student from Saxony would certainly appreciate it! Of the twenty-nine CK4 chondrites from NWA hitherto listed in the Bulletin, none has been assigned a weathering degree of W0: W0 = none W0/1 = one W1 = four low = 2 -- Best pre-Xmas wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Minor planet (149243) Dorothynorton
AWESOME. I could not think of a nicer person to get an honor such as this, congrats Dorothy! Sincere congratulations, Dorothy! An honor well deserved!!! -- (163800) Richardnorton = 2003 QS69 Minor planet (149243) Dorothynorton -- Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ice Meteorites from Jesus
I prayed for Jesus to send me an ice meteorite, because I knew it would be quite valuable,... = I p r a y e d = v a l u a b le ! ! ! If Snyder's claim is accurate, [he] ... will be catapulted to worldwide fame .. or right into Hell ;-) No further comments from me on this thread! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Test
Sorry, test # 3, only! I can hear you loud and clear! Welcome back! Bernd To: Meteorite-list@meteoritecentral.com Cc: metopas...@gmx.de __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Temperature of meteorites
Original Message processed by Tobit InfoCenter Subject: Re: [meteorite-list] Temperature of meteorites (24-Nov-2010 11:17) From: hr...@aon.at To: bernd.pa...@paulinet.de Hello All, Again forwarding something ... this time from Herbert Raab: Zelimir Gabelica wrote: Are there data reporting cold, frozen or alike meteorites ? In the Natural History Museum in Vienna, there is a slice of Dhurmsala on display. The label reads: Dhurmsala. Gefallen 14.Juli 1869. Kam so kalt zur Erde, dass er nicht in der Hand gehalten werden konnte. Einziger derartiger Fall. (Dhurmsala. Fell July 14, 1869. Reached [the surface of] the Earth so cold that it was not possible to hold it in the hand. Only known such case.) Haidinger, in his description of the 1866 fall of Knyahinya, writes: Der israelitische Gastwirth gab die bestimmte Äußerung ab, daß der Stein, der, wo er saß, vor ihm herabfiel, und den er sogleich aufhob, eiskalt war, aber daß ihm die Hand intensiv nach Schwefel - und Pulver, auch Knoblauch - wie der Ausdruck war - roch, so zwar, daß die Hand noch zwei Tage lang den Geruch beibehielt. (The israelitic innkeeper gave the certain statement that the stone which fell in front of him, where he sat, and that was picked up immediately, was ice-cold, but that his hand smelled like sulfur - and [gun]powder, even garlic - as his words were - and that the had kept that smell for two days.) Best greetings, Herbert __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Temperature of meteorites - Correction of typo
and that the *hand had kept* that smell for two days. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Temperature of meteorites
Good morning Listees, Listoids, Listers, Here's a copy of something I posted many years ago (maybe 2004). Cheers, Bernd --- Meteorites - warm or hot to the touch? 01) The Binningup meteorite was recovered within a few minutes of the fall and was reported to have been warm to the touch. 02) Cabin Creek: Three hours after the fall, Mr. and Mrs. Shandy were able to find the hole and excavate the mass, reportedly still uncomfortably warm. 03) Glatton: was warm, not hot, when first picked up. 04) Gurram Konda: near the tent some small warm stones, which the Sentry has seen falling down. 05) Juromenha: The mass was said to have been incandescent when discovered and still warm when recovered next morning 06) L'Aigle: Affrighted persons who picked them up found the stones to be very warm and smelling of sulfur. 07) Limerick: It was immediately dug up, and I have been informed by those that were present, and on whom I could rely, that it was then warm and had a sulphurous smell. 08) Middlesbrough: The stone was new-milk warm when found, ... 09) Noblesville: The meteorite was not glowing as it passed the boys and was slightly warm when Spaulding picked it up a few seconds after it fell. 10) Pettiswood: The affrighted horse fell to the Earth, and two boys rushed to him in terror carrying fragments that Bingley found to be warm as milk just from the cow. 11) Pontlyfni: When I picked up the fragment of metal, or whatever it is, it was warm in my hand. 12) Rowton: It is, moreover, stated that when Mr. Brooks found the mass it was quite warm. 13) Tsukuba: Seconds later student Ryutaro Araki stopped to retrieve a still-warm stone that had fallen in front of his car near Tsukuba 14) Wold Cottage: Rushing to the spot he found a large stone, warm and smoking and smelling of sulfur. 15) Crumlin: When dug out the object, which had embedded itself in a straightdownward course for 13 inches, was found to be quite hot, continuing so for about an hour. 16) Eichstädt: The man rushed to the spot but found the black stone too hot to pick up until it cooled in the snow. 17) Hanau: A hot stone the size of a pea was picked up, weight 0.37 gr. 18) Harrogate: A hot stone, like basalt, fell accompanied by whistling in the air and lightning and thunder ... 19) Holbrook: One piece larger than an orange fell into a tree in a yard at Aztec cutting the limb off slick and clean and falling to the ground, and when picked up was almost red-hot. Von Achen, who saw them fall, reported that they were too hot to pick up. Two accounts state that they became lighter in color after cooling. 20) Lucé: several harvesters, startled by sudden thunderclaps and a loud hissing noise, looked up and saw the stone plunge into a field where they found it half-buried and too hot to pick up. 21) Magombedze: A 10-cm stone weighing approximately 600 gr survived the impact intact and was hot to touch. 22) Menziswyl: The farmers say that the stone fell with the lightning and shattered when it hit the ground; it was hot when they picked it up. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Henbury meteor craters
Patrick wrote: Images from a trip many years ago to Northern Territory, Australia's Henbury meteor craters: http://users.wirelessbeehive.com/~paw/HMCAPR88.HTML Hello Patrick, Beautiful shots but photo #9 is the one I like best because when I look at it, I feel the urge to crawl on all fours in search of shale pieces and/or Henbury iron individuals :-) Thank you for sharing! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Lost City Fall Picture (was: Temperature of meteorites)
Larry wrote: I wish I could find the old Lost City fall picture of the meteorite in snow. I do not remember seeing any melted snow around it, but it must have been warm enough to attract a dog. Hello Larry and List, E.L. Fireman, Smithsonian Astrophysical Observatory - Sky Telescope, March 1970, The Lost City Meteorite Fall, pp. 154-158. Picture(s) on p. 156: *Within minutes* after discovering the meteorite lying on a snow- covered Oklahoma road, Gunther Schwartz took these pictures of it. *Snow had melted* around the stone and showed its black crust. Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] WANTED: Lot of Canyon Diablo
Original Message processed by Tobit InfoCenter Subject: WANTED: Lot of Canyon Diablo (23-Nov-2010 15:56) From:metopas...@gmx.de To: bernd.pa...@paulinet.de Forwarding this for Ingo whose posts don't make it to the List! -- Hi Listees! I'm looking for a lot of small Canyon Diablos; about 1 or 2 kg or so (depends on price). Let me know what you can offer me, off list please. Thanks a lot! Ingo/Germany (IMCA #2074) __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Barringer Meteor Crater (rescanned)
Here's the new version: http://users.wirelessbeehive.com/~paw/MCAPR73.HTML Cheers and kudos !!! for the rescanned version from Germany, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Native American use of meteorites
Hello All, Has anyone ever done comparisons of the meteorites found in Hopewell mounds and existing collections? Possible Sources of Meteoritic Material from Hopewell Indian Burial Mounds (by J.T. WASSON and S.P. SEDWICK, Department of Chemistry and Institute of Geophysics and Planetary Physics, Los Angeles, California 90024): Pallasite Ni(%)Ga (ppm)Ge (ppm)Ir (ppm) Anderson11.3 24.865.60.045 Hopewell Mds10.6 24.0 61.80.049 Admire 10.7 20.339.20.017 Ahumada 8.0 21.449.00.057 Albin 10.4 16.829.40.015 Brenham 10.6 26.170.80.037 Eagle Station 15.4 4.5475.310.0 Glorieta Mtn.12.013.210.70.014 Mount Vernon11.5 21.549.10.14 Newport 10.7 17.531.20.16 South Bend 9.6 21.241.30.055 Springwater 12.6 14.831.90.069 Finmarken 10.7 18.743.71.8 Imilac 9.0 21.146.00.071 Krasnojarsk 8.9 22.056.60.18 The compositions of the burial mound pallasites are more like that of Brenham than that of any other pallasite which we have investigated. Among the North American pallasites the next similar are Ahumada and Mount Vernon, but the Ge contents of each of these objects are some 20 per cent lower, the Ni concentration of Ahumada is 20 per cent lower, and the Ir concentration of Mount Vernon is a factor of three higher than those of the burial mound objects. ...we conclude that the Hopewellian pallasites are fragments from the Brenham fall. ARNOLD J.R. and LIBBY W.F. (1951) Radiocarbon Dates: Havana, Hopewell Mounds (Science 113, pp. 111-120): Charcoal from the Hopewell Mounds has a radiocarbon age of 1951 ± 200 years The American Journal of Science (1890), ART. XLII. On five new American Meteorites; by George F. Kunz: In the spring of 1883, Professor F.W. Putnam found on the altar of mound No. 3 of the Turner group of mounds, in the Little Miami Valley, Ohio, several ear-ornaments made of iron, and several others overlaid with iron. With these were also found a number of separate pieces that were thought to be iron. They were covered with cinders, charcoal, pearls [two bushels were found in this group of mounds], and other material, cemented by an oxide of iron, showing that the whole had been subjected to a high temperature. On removing the scale, Dr. Kennicutt found that they were made of iron of meteoric origin (Sixteenth and seventeenth reports of the Peabody Museum of Archeology, p. 382). __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Native American use of meteorites
Hello All, ... nickel = 59.69% ... There is another analysis with an even higher Ni value for Oktibbeha: 62.01 % Ni Here's a listing of some irons with a nickel content higher than Dayton's: Oktibbeha County - 59.69 Lafayette (iron) - 59.4 Dermbach - 42.1 Santa Catharina - 33.97 Tishomingo - 32.5 Twin City - 29.9 Lime Creek - 29.99 Willow Grove - 27.9 Barbianello - 27.1 San Cristobal - 25.6 Wedderburn - 23.95 Freda - 23.49 Onello - 21.7 Britstown - 19.5 Morradal - 18.77 Tinnie - 18.4 Kofa - 18.27 Czestochowa Rakow I - 18.25 Warburton Range - 18.21 Föllinge - 18.13 Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Native American use of meteorites
Hello again, ... nickel = 59.69% ... Oops, almost forgot Mirko Graul's NWA 6259. Sorry, Mirko! NWA 6259, the iron with the SECOND highest nickel content so far: = 42.6% Ni = .. and it is even magnetic! In other words, not only is it attracted to a magnet but is itself magnetic! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] High Ni content of irons (was: Native American use of meteorites)
Just got some flak re: NWA 6259, the iron with the SECOND highest nickel content so far: = 42.6% Ni = Well, one look into Vagn Buchwald's trilogy will tell you that there are very often several (different) analysis results. So, maybe Mirko's NWA 6259 is the iron with the third highest nickel content. It was classified by John Wasson and he says: second highest in an iron meteorite (see: online Encyclopedia of Meteorites). Anyway, what I can tell you for sure is this: You don't need a mirror because Mirko's polished slices of NWA 6259 surely replace a mirror! A true cosmic iron beauty with golden troilite blebs! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Temperature of meteorites
Hello Larry and List, What is the best estimate we have for the ambient temperature of meteorites after they have passed through the atmosphere? Dhurmsala was said (!) to have had frost on its surface when it was recovered. Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mirko's NWA 6259
Any pictures of Mirko's NWA 6259 available? Hi Dave and List, .. on my way to bed because it's 01:05 hrs a.m. here but pictures can be viewed here: http://www.lpi.usra.edu/meteor/metbull.php?sea=NWA+6259sfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=51829 Good night everybody, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks from Space Picture of Day - November 16, 2010
Hi Dave and List, http://www.rocksfromspace.org/November_16_2010.html My buddy Sawyer contemplating how things might have been different in Uganda 1992, had another individual come through banana tree leaves to strike a boy in the head...ouch! The only solace for the boy would have been that he was struck by an extremely beautiful, thumbprinted messenger from space. But, alas, he wouldn't have had time to appreciate it any more! Thanks Michael, Dave for sharing! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Brian Marsden, Eminent Astronomer and Comet/Asteroid Tracker, Dies
predict that Swift-Tuttle would not return until late 1992. This prediction proved to be correct. B.G. Marsden (1992) Cover Story - Comet Swift-Tuttle: Does It Threaten Earth? (Sky Tel. 1992, pp. 16-19): My predicted dates for the next perihelion passages of Swift-Tuttle are July 11, 2126, and August 14, 2261- two exceptionally favorable returns very close to Earth. Our descendants in the 22nd century can look forward to quite a spectacle, ... __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] RIP Brian Marsden
Sad news indeed ... Fred L. Whipple (1985) The Mystery Of Comets, p. 72: More than two centuries of intensive comet hunting, coupled with information from older records, give us vitally important clues to the habits of comets, how they move, and where they come from. The authoritative catalogue of comet orbits, compiled in 1982 by Brian G. Marsden at the Smithsonian Astrophysical Observatory, contains 1,109 orbits for 710 individual comets observed, a far cry from the 24 so laboriously calculated by Halley. An interesting interview in S + T and on how to send an astronomical telegram (before the internet turned our planet into a global village): Sky Tel. (1980) An interview with B. Marsden: Life in the hot seat (S+T, Aug 80, pp. 92-96). --- Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Happy Birthday Ensisheim
Alan S. wrote: Ensisheim is 518 years old Hello All, --- Thousand four hundred Ninety two, There was heard here a great Noise: Then down before the city, The 7th of the Wintermonth*, A huge stone, on a bright day, Was fallen with a thunderclap, In weight, two hundred and fifty pounds, Of iron color; they brought it in With a stately procession. Very many pieces were struck from it with force. 1492. by J.J. Casimir Karpff, 1795 --- Cheers, Bernd * by the Julian calendar __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Happy Birthday Ensisheim
Hello All, Forwarding this message from one of our List Giants: Martin Horejsi! Hello Bernd and All, Happy Ensisheim Day! http://www.meteorite-times.com/navigation/accretion-desk/ensisheim-the-king-of-meteorites/ __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Wow! what a meteor this morning, Fragmented.
Hello Dave, Dirk, Rob, and List, this morning at 4:20 or 4:25AM, ... slow moving meteor ... came out of the western sky and headed south east. It came in very low in the sky with sparks trailing ... a very bright flash that lit up the sky and it looked like the front or bottom blew out as it fragmented. I wonder if that may have been a sizable, fragmenting Taurid (debris from Comet 2P/Encke). Taurids are relatively slow but sometimes blaze quite brightly! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Catalogue cards
Chris wrote: I put mine on my computer alphabetically. Hi Chris, Dennis, and List, Just like Chris, I put my meteorites in my computer databases alphabetically: Name, type, weight, dimensions, description [which includes shock and weathering degrees, total known weight descriptive details (slice, part slice, thin section, personal descriptive notes, special features, Met.Bull. info, etc.), provenance/source], price (in my case Euro currency). Here's an example: Allende (01)*, CV3.2, 161.3 gr, 6.7x4.7x3.7 cm, individual with 50 % crust and numerous small chondrules protruding through the matrix and coated with a thin layer of secondary fusion crust. Purchased from...** Belongs to the oxidized subgroup: high magnetite/metal ratio in its chondrules and high Ni content of its metal in chondrules and inclusions. The dominant sulfide phase is pentlandite. Price: ...** * (01) = no. 1 of 10 Allende specimens in my collection ** Source and price omitted in this post for obvious reasons. Of course, I also take pictures of my meteorites and my thin sections and add pertinent info (see: online Encyclopedia of Meteorites for some examples). A selection of the above-mentioned details is also to be found on the labels that I glue onto the dividers of my collection boxes. Here's a thin section example (database entry): Gold Basin-d (16a), L4-6; br., thin section d from one of ...'s and ...'s finds. Gift from .. Forsteritic chondrule measures 1.8 x 1.7 mm. Polysomatic chondrule with several sets of parallel olivine bars displays triangular orientation and measures 2.6 x 2.0 mm. A large elongated POP aggregate consists of abundant small crystals and measures approximately 3.4 x 2.0 mm. Large vivid purplish blue olivine crystal (0.8 x 0.7 mm) is in direct contact with an orange-yellow pyroxene crystal (0.7 x 0.5 mm). And, again, a photo (or photos) also exist. Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] (OT :-) The Real Caveman (Was: Micro Mike Text)
Hi Adam and All, ... Discovered living in a cave on Oct. 13 in a deep canyon ... With his supplies gone, Barber's condition is next to hopeless, when he discovers a cave at the top of a cliff. To his surprise he finds the interior fully equipped; in the bed there lies a dead man. He adopts the dead man's identity and lives in the cave. A period of deep happiness and extraordinary artistic productivity begins. He is soon visited by an Indian, George Ugly Mouth, who takes him for the dead man. He finds out that the dead man had been involved with a gang of outlaws, the Gresham brothers, whose return is only a matter of time. When they do finally come, Barber kills them in cold blood. In their saddle bags he finds a large amount of money. He leaves the cave and begins a new life as Thomas Effing in San Francisco; by investing the money wisely he soon becomes very rich. He leads a life of luxury, yet cannot enjoy it for fear of having his identity revealed by someone from the past. Feelings of guilt become so strong that he seeks oblivion in opium, women and gambling. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Paul Auster, Moon Palace Chapter 5: Summary -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Finding fossil Meteorites
Count Deiro inquires: Have you, or any others on List, found a fossil meteorite in situ? Considering the high degree of terrestrialization of Ordovician/fossil meteorites (usually the chromite content is the only hint it once was meteoritic) and also considering the extremely low number (5 or 6?) of fossil meteorites found so far, it is highly unlikely a meteorite collector will ever find a fossil meteorite in situ. Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Metachondrite(s)
Good morning Steve, Greg and List, Greg S. wrote: I understand a metachondrite to be a chondrite that has undergone metamorphism resulting in recrystalization. The composition is much the same as in the original chondrite. There are different affinities, such as 'H' 'L' or 'LL'. I think there are others including E's and 'C' chondrites. That's right. One further, important aspect is that they are all virtually without (relic) chondrules, devoid of chondrules with a few minor exceptions. See here: http://www4.nau.edu/meteorite/Meteorite/Metachondrites.html#En Best morning wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Could we get back to the science of meteorites, please ?
Steve wrote: Second! Bernd: Third! :-)) I've been spending an enjoyable evening at the microscope ogling my NWA 5507 slice (16.39 gr - see Encyclopedia if interested). Marcin's NWA 5507 is an interesting L3.2 with lots of spectacular features: - clasts (or PP chondrules?) with abundant translucent, light-green hypersthene crystals in a grayish groundmass + tiny chromites - finely disseminated troilite - troilite-rimmed chondrules - complex BO-Pyroxene chondrules - and much more! Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Could we get back to the science of meteorites, please ?
Steve wrote: Second! Bernd: Third! :-)) I've been spending an enjoyable evening at the microscope ogling my NWA 5507 slice (16.39 gr - see Encyclopedia if interested). Marcin's NWA 5507 is an interesting L3.2 with lots of spectacular features: - clasts (or PP chondrules?) with abundant translucent, light-green hypersthene crystals, a greyish groundmass + numerous tiny chromites - finely disseminated troilite - troilite-rimmed chondrules - complex BO-Pyroxene chondrules - and so much more! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Could we get back to the science of meteorites, please ?
Oops, sorry for the double post! Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Vaca Muerta euc- what is it?
AL kindly wrote: I believe there is an absence of olivine in mesosiderites. Objection, Your Honor! Norton O.R. (2002) The Cambridge Encyclopedia of Meteorites, p. 157: Accessory amounts of olivine are also present in mesosiderites ...the mineralogy of the silicate portion...is ...orthopyroxene and plagioclase with minor amounts of olivine. Norton O.R. (2008) Field Guide to Meteors and Meteorites, p.173: a) Figure 8.10: Estherville...Silicates include olivine, pyroxene, and plagioclase... b) Figure 8.11: Vaca Muerta...Like Estherville, it contains eucritic pebbles and many silicate inclusions... T.H. Burbine et al. (1996) Mantle material in the main belt: Battered to bits (Meteoritics 31-5, 1996, 607-620, p. 609): Mesosiderites are stony-iron meteorites containing Ni-rich Fe metal and mafic silicates (Floran, 1978). The amount of metal has been found to vary from 17 to 80 wt% but is usually between 40 to 60% (Mason and Jarosewich, 1973). The silicates are mainly orthopyroxene and plagioclase with lesser amounts of other silicates such as pigeonite and olivine (Floran, 1978). By the way, a few years ago, Martinez Rodrigo offered thin Vaca Muerta slices with predominantly eucritic components and / or olivine crystals. Some of the olivine-rich slices were cut so thinly that they were even translucent when held up against the light. Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks from Space Picture of the Day - October 15, 2010
http://www.rocksfromspace.org/October_15_2010.html Congrats, Bob! Beautiful shot of a complex, porphyritic megachondrule. What makes it so exceptional apart from its size is its complexity: pyroxene crystals + pyroxene laths/strands. Thanks to Michael and to Bob for sharing! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Thin Section Collection for sale
Hello Jim and List, NWA 1930 (LL3), Tatahouine (ADIO), NWA 1648 (ADIO), NWA 1054 (ACAP) Spade (H5) seem to come from Jeff Rowell who used to have such labels. As for: Cleo Springs (H4), NWA301 (H6), NWA 869 (L4-6), Sahara 99228 (H?) .. these *seem* to be of Dean Bessey provenance (handwriting!) DAG 078 (CO3), NWA 1929 (AHOW) *may* be from David New or from Anne Black. NWA 969 (LL6/7) = Hupés Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Opava meteorite
Hello Marcin, Thank you for sharing these interesting photos of the Opava meteorite with us. Very much appreciated and,... don't forget to upload to them to the Encyclopedia of Meteorites. Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Cub Scouts and a Star Party
Ed wrote: A wonderful report, I enjoyed the read very much. So did I! Albireo (beta Cygni)is one of my favorites, too! My 42-year-old daughter, when she was young, used to call Albireo Little Sister and Brother :-) and: Everyone knows that it is in the south... ;-) Ed, hey, ain't it a U.S. submarine? So, it's Down Under :-)) Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Remembering Jim Kriegh (+ October10, 2007)
Hello Jim, For heaven's sake, how time flies! It's been three years now that you are gone! Be assured that you are not forgotten nor ever will! Where would all the hundreds of Gold Basin meteorites be today Without your, Twink's, and John's meticulous field studies? Where would those be that now walk in your footsteps? Would Franconia ever have been searched? We wish you all the best up there, So far away and yet so near! The MetList Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Norways TV-astronomer KJR ¥dega ard helps decovers Norways 2nd largest meteorite! ?
Rob W. wrote: = As for Farmers: Mike is bringing that mass into his abdomen to allow other muscles to assist The smile on his face is saying Take the effin picture already = As for Bavarianswell I have no argument .. and what about this guy? :-) http://spacerocksinc.com/February_9.html Well, I know him in person and I can tell you he was thinking exactly the same, namely: Take the effin picture already! ;-) Correction: horseshoe-shaped Sikhote-Alin with awful thumprints This should have been awesome, of course! Best regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Marcin's NWA 6309 eucrite
Hello All, On Saturday, August 28, 2010, Marcin introduced his latest eucrite to us: NWA 6309, a polymict, silica- and plagioclase-rich eucrite. Today I finally got my 8.7-gram slice and one of the thin sections he is offering. Even though this is not my first eucrite (meanwhile there are 86 eucrites + 10 eucrite TS in my collection), I must say that this NWA 6309 is a real crystal beauty - both in hand sample as well as in cross-polarized light! Brown, sugary crystals (like those of Agoult), beautiful, well-developed ilmenite crystals, abundant snow-white plagioclase, and so much more! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The black stone in the wall of the Ka'ba (Part 1 of 3)
BURKE J.G. (1986) Cosmic Debris, Meteorites in History, pp. 221-223: The black stone in the wall of the Ka'ba is a holy relic. Muslim religious leaders know its origin and history through oral tradition and written records, and they have cooperated with inquisitive Westerners to the extent of providing this information and giving a cursory description of the stone. Thus, although many have speculated since the early nineteenth century that the black stone was a meteorite, there is no proof that such is the case. Recent studies, in fact, discount its meteoritic origin. Paul Partsch, curator of the Vienna cabinet, published the first comprehensive history of the black stone in 1857. He relied on the travel accounts of Carsten Niebuhr (1772), J.L. Burck- hardt (1814), and Ali Bey (1807), and also corresponded with Ritter von Laurin, the Austrian general consul in Egypt. In his official capacity, von Laurin knew Mohammed Ali, viceroy of Egypt, who had in 1817 defeated the fanatic, heretical sect of Wahhabis and retrieved the holy stone, a fragment of which he kept. Von Laurin saw this fragment and described it in his letter to Partsch, adding that an English resident who had also viewed the stone considered it to be a meteorite. Although Partsch was cautious, he favored the stone's meteoritic origin, and authorities accepted this opinion. The legend is that the stone came from paradise. In one version, it was initially Adam's guardian angel, who was transformed into a stone as punishment for Adam's fall. The angel Gabriel gave the stone to the patriarch, Abraham, to build into his house or into the first Ka'ba. There was indeed a temple on the site, dating from about A.D. 200 and housing idols, which the Arabs worshiped before the time of the prophet Mohammed (570-632), but it was destroyed, possibly by fire, during his lifetime. Mohammed placed the stone in the wall at the northeast corner of the shrine when it was rebuilt. It was subsequently broken on at least four occasions: once by a fire; twice by fanatic sects who took possession of the stone for a time; and once by invading Egyptian troops, whose leader shattered it with a maul. Reports state that on each occasion the recovered pieces were cemented together with mortar, and the whole bound with a silver hoop. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The black stone in the wall of the Ka'ba (Part 2 of 3)
BURKE J.G. (1986) Cosmic Debris, Meteorites in History, pp. 221-223: It is impossible to estimate the original size of the stone or even its present dimensions. One observer in the early tenth century wrote that it had a length of 1 cubit (slightly over 2 feet). Another, who saw it during the remodeling of the wall in the early seventeenth century, stated that it measured 1.5 by 1.33 yards. Ali Bey stated that it was 42 inches high, and Mohammed Ali reported that it was 2.5 feet long and 1.5 feet high. At present, the exposed face, which is surrounded by a wide oval frame of silver, measures 20 by 16 cm - approximately the same dimensions of the face recorded by Ali Bey. Burckhardt wrote that the face was composed of a dozen smaller stones of various sizes and shapes; at present eight small pieces comprise the face, the largest about the size of a date. The criteria for judging what mineral species the stone contains have been the color, texture, and estimated specific gravity. According to one legend, the angel gave Abraham a transparent hyacinth; according to another, it was originally pure white and became black either because it was kissed by a sinner or because of the sins of mankind. The exterior face of the stone is black and highly polished, due to its having been rubbed by millions of pilgrims. Modern observers report that there are a few white or yellow dots on the face, and an official record states that it is white with the exception of the face. Von Laurin described the fragment he saw, which was purportedly carried away by Mohammed Ali, as having a pitch-black exterior and a silver-gray, fine-grained interior, in which tiny bottle-green cubes were embedded. Burckhardt wrote that it was difficult to judge the quality of the stone, but that it appeared to be lava. The English resident Lyons, who, according to von Laurin, thought the stone was a meteorite, remarked that it was heavy. Another report, however, stated that it floated on water; this quality permitted the identification of the pieces recovered from its initial theft. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The black stone in the wall of the Ka'ba (Part 3 of 3)
BURKE J.G. (1986) Cosmic Debris, Meteorites in History, pp. 221-223: Partsch evidently favored a meteoritic origin of the stone, both because of von Laurin's description of the black exterior of the fragment he viewed, its interior texture, and its purported heaviness, and because Muslims said that it came from heaven and venerated it as the Greeks and Romans venerated similar stones not too far distant in time and place. In 1974 Dietz and McHone emphasized that the Muslims do not claim that the stone is a meteorite. They postulated that the stone is an agate, because of the high polish it displays among other physical attributes and because an Arab geologist, who studied the stone carefully during a pilgrimage to Mecca, reported that diffusion banding is clearly discernible within the stone. In 1980, however, Thomsen presented a different hypothesis. She suggested that the stone may be a chunk of impactite glass, mined from one of the meteorite craters at Wabar in the so-called Empty Quarter of central Saudi Arabia, about 1,100 km from Mecca. She pointed out that the whiteness may derive from an exposure of the interior white core of a bomb or... from a large fragment of white glass or sandstone, and that the whiteness remains only where it is protected by cement. Further, she wrote: The yellow and white spots may be remnants of glass and/or sandstone. The porosity which allows it to float is due to vesicles in the glass, and the resistance of the material to abrasion due to the hardness of the glass. The blackness results from the nickeliferous iron spherules captured from an explosion cloud of Ni and Fe. Thomsen also thinks that ancient Arabs may have observed the meteorite fall, estimated to have occurred about six thousand years ago, and that natives later carried the impactite glass to Mecca along a caravan route. Thus, there is now considerable doubt that the black stone of the Ka'ba is a meteorite. Partsch Paul (1857) Über den schwarzen Stein in der Kaaba zu Mekka (Denkschriften der Akademie der Wissenschaften, Wien, 13, pp. 1-5). Dietz R., McHone J. (1974) Kaaba Stone: Probably an agate (Meteoritics 9, pp. 173-179) Thomsen Elsebeth (1980) New light on the origin of the Holy Black Stone of the Ka'ba (Meteoritics 15, pp. 87-91). -- Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] An 18th century depiction of a meteor
Darren, thanks for this link: http://blogs.law.harvard.edu/houghton/2010/09/24/look-up-in-the-sky/ .. and while we are at it, there was an equally interesting article in the July 2010 issue of Sky Telescope, pp. 28-33: Walt Whitman's Year of Meteors - Poem: Year of Meteors - 1833 Leonids? - 1858 Leonids? - 1859 Daylight Fireball? - Meteor Showers and Earth Grazers - Meteor Processions - July 20, 1860, Meteor Procession -- Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Off-topic E-mail address wanted.
Hi Ed, Gary and List, Does anyone have Harold Povenmire's e-mail address in Indian Harbour, Fl. = katieh...@yahoo.com = Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] New Gebel Kamil meteorite with Schlieren bands
Hello Tim, Mirko, and List, As Mirko already pointed out, the schlieren banding will only be seen after etching (at least slight etching or deep-etch if you prefer that). Only then will you see these characteristic diffuse streaks (usually of group IVB ataxites - another reason why Gebel Kamil is classified as ungrouped). The image that Mirko provided and one of my slices (from Mirko) clearly reveal those bands and patches dovetailed into each other and tapering out irregularly. Now, when you tilt such polished and etched slices against a light source, you will notice that bright and matte parts shift alternatingly: the bands that were bright from one perspective, now appear dull and vice versa. This oriented sheen has to do with the alpha + gamma structure, cooling, decomposition, (absence of) diffusion, crystallographic orientation, etc. .. too complicated (for me :-) to explain. Best Schlieren wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ultraviolet Space Rocks?
AL, David, List, I mean, are the scientists really looking and checking for fluorescent color values in meteorites on a systematic basis? Yes, they do. Cheers, Bernd - Some references :-) S.W.S. McKeever, D.W. Sears (1980) Meteorites That Glow (Sky and Telescope, July 1980, pp. 14-16). Melcher C.L. (1981a) Thermoluminescence of meteorites and their terrestrial ages (GCA 45, 615-626). Melcher C.L. (1981b) Thermoluminescence of meteorites and their orbits (Earth Planet.Sci. Lett. 52, 39-54). McKeever S.W.S. (1982) Dating of meteorite falls using thermoluminescence: Application to Antarctic meteorites (Earth Planet.Sci.Lett. 58, 419). Sears D.W. et al. (1983) Chemical and Physical Studies of Type 3 chondrites - II: Thermoluminescence sensitivity of sixteen type 3 ordinary chondrites and relationships with oxygen isotopes (Proc. Lun.Planet. Sci. Conf. 14th, Part 1, J. Geophys. Res. 88, B301-B311). Haq M. et al. (1988) Thermoluminescence and the shock and reheating history of meteorites: IV. The induced TL properties of type 4-6 ordinary chondrites (GCA 52, 1679-1689). Keck B.D. et al. (1987) Chemical and physical studies of type 3 chondrites - VIII: Thermoluminescence and metamorphism in the CO chondrites (GCA 51, 3013-3021). Guimon R.K. et al. (1988) Chemical and physical studies of type 3 chondrites - IX: Thermoluminescence and hydrothermal annealing experiments and their relationship to metamorphism and aqueous alteration in type 3.3 ordinary chondrites (GCA 52, 119-127). Sears D.W.G. (1988) Thermoluminescence of meteorites: Shedding light on the cosmos (Nucl. Tracks Radiat. Meas./Int. J. Radiat. Appl. Instrum., Part D14, 5-17). P.H. Benoit et al. (1991) Thermoluminescence survey of 12 meteorites collected by the European 1988 Antarctic meteorite expedition to the Allan Hills and importance of acid washing for thermoluminescence sensitivity measurements (abs. Meteoritics 26-2, 1991, 157-160). Hasan F. A. et al. (1991) Natural thermoluminescence levels and the recovery location of Antarctic meteorites (Smithson.Contrib.Earth Sci.). P.H. Benoit et al. (1991) The natural thermoluminescence of meteorites - II. Meteorite orbits and orbital evolution (Icarus). P.H. Benoit et al. (1993) Carbon-14, thermoluminescence and the terrestrial ages of meteorites (Meteoritics, 28-2, 1993, 196-203). Yamazaki M. et al. (2001) Thermoluminescence study of shocked ordinary chondrites (MAPS 36-9, 2001, A228). Koike C. et al. (2002) Thermoluminescence of forsterite and fused quartz as a candidate for the extended red emission (MAPS 37-11, 2002, pp. 1591-1598). __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ultraviolet Space Rocks?
Hello All, Here are some details from an abstract, Cheers, Bernd - D.W.G. Sears, P.H. Benoit, and D.G. Akridge (1999) Thermoluminescence and The Thermal History Of Meteorites (MAPS 34-4, 1999, A105, excerpts): - the TL sensitivity of unequilibrated ordinary chondrites correlates with petrographic type and thus metamorphic history - the TL sensitivity of type 3 chondrites correlates with a variety of indicators of metamorphic alteration such as mineral heterogeneity, volatile contents, and abundance of presolar grains - TL sensitivity is the basis of the widely used subdivision of type 3 ordinary chondrites into types 3.0-3.9 - cathodoluminescence (CL) studies indicate that the TL sensitivity increases during metamorphism as glass crystallizes to feldspar - the temperature and width of the induced TL peak are also related to thermal history. Thus peak temperature and width can be used for palaeothermometry. Some conclusions based on such measurements: - the CV and CO chondrites spent a longer time at lower temperatures than UOC - the TL sensitivity of the comminuted matrix of regolith breccias is lower than that of the clasts due to the destruction of crystalline feldspar. Thus the matrix- to-clast TL sensitivity ratio provides a measure of regolith maturity (similar trend observed in lunar breccias and lunar soils) - the HED meteorites, especially the eucrites, can be subdivided into petrographic types 1-6 using TL sensitivity and the types agree with those based on mineralogy. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorites That Glow (Was: Ultraviolet Space Rocks?)
S.W.S. McKEEVER and D.W. SEARS (1980) Meteorites That Glow (Sky and Telescope, July 1980, pp. 14-16, excerpts): In 1802, Edward C. Howard exposed a sample of the Benares meteorite to an electrical discharge and it glowed in the dark. A. Herschel discovered that some grains from the Middlesbrough meteorite glowed distinctly when sprinkled onto a hot plate in the dark (= thermo- luminescence [TL] a result of heat stimulation). Thermoluminescence Ordinary chondrites luminesce brightly with a maximum at about 200°C; a second peak occurs at 350°C, and the color at both peaks is blue green. Aubrites are a small class of meteorites with an entirely different glow curve, with several peaks and colors ranging from blue to red. In ordinary chondrites the mineral feldspar produces the TL In aubrites, enstatite is primarily responsible. Cathodoluminescence Samples irradiated by an electron beam can glow with what is called cathodo- luminescence (CL). The electron gun and an optical microscope each point to a spot on the specimen's surface, and the result is observed directly. Most thermoluminescent minerals also turn out to be cathodoluminescent. CL is bright, so luminescent grains in the slice of a meteorite are easy to locate, and they can be photographed through the microscope. As in TL, feldspar produces most of the light, a distinctive blue green. Feldspar is an important component of ordinary chondrites and the chondrules in them. Their intricate, often beautiful structures are strikingly revealed by CL. Applications Determining the cosmic age of meteorites by spotting the red CL of chlorapatite against the blue background of feldspar and examining the nuclear fission tracks of now-extinct isotopes like plutonium 244. Determining the terrestrial age of meteorites: decrease in TL provides a means to estimate how long ago a meteorite fell. TL levels can help detect heating processes of meteoroids in space, for example: a close passage to the sun. Detecting meteorites that suffered a violent event (shock and heating attending the parent body breakup). This caused them to blacken and lose their TL and CL. Such shock-darkened meteorites seem to be much younger. -- Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Cosmic Ray exposure (of D'orbigny)
Hi Ed and List, The (average) CRE of D'Orbigny is 12.3 ± 0.9 Ma according to this abstract: Eugster O. et al. (2002) Characterization of the noble gases and CRE age of the D'Orbigny angrite (MAPS 37-7, 2002, A044). Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite eBook Opinions Sought
Hi Kevin and List, I don't quite qualify re: opinions sought because I have my copy of this book on my shelf but I wouldn't want seeing: - many photos deleted, - color illustrations eliminated, - the quality of the paper diminished. And, I wouldn't need a pdf-format nor an eBook (Apple). I often read a bit in bed before falling asleep but I wouldn't want to fall asleep with my notebook in my arms :-) Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NWA 6292 (BRA) IS paired to NWA 5400 !
Hi Tim and List, Please, ladies and gentlemen, don't denigrate those of us who say we collect for investment No hard feelings, no denigration, of course, but I do remember that my passion for stamps began to wane when I started seeing a monetary value in my stamp collection. Money was always important when, as a youngster, I had to decide whether I should buy some new stamps from the money my parents gave me for our daily school ration of milk, a roll, and a small bar of chocolate. Very often I opted for the stamps but this was not profit-/business-oriented. The sole driving force was to acquire some more stamps that I didn't have yet and marvel at these little pieces of paper. But when I started considering them as a means to make money ... the passion, the enthusiam was gone. I don't collect meteorites for investment but for the pure joy of holding a piece from the depths of the solar system (and beyond) in my hands and study it (visually and microscopically). As for investment, most of us will know that collectibles seldom yield the financial value you have invested. When I started selling my stamps to make money, I usually got about 1/3 (only) of the monetary value indicated for these stamps in catalogues (here in Germany this was the so-called Michel Katalog for those in the know). Whether NWA 6292 is paired to NWA 5400 or whether it isn't, doesn't really bother me. The thrill (for me) is that at least one of them plots directly on the TFL, whereas run-off-the-mill brachinites do not. And, on the TFL or below, NWA or Brachina, a microscopic look at an acapulcoite, a lodranite, an angrite, a brachinite, a diogenite thin section (like NWA 6256) or a eucrite thin section like (NWA 1644 or NWA 6309) in cross-polarized light will blow your socks off - whether you like it or not. Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Denver Show: COMETS Auction/Party photos
Hi Bob and List, http://www.peaktopeak.com/comets/2010/2010show.htm Very much appreciated! Thanks for sharing! Bernd (just back fom his daughter's 42nd birthday :-) __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Neat Article Recognizing NWA Planetary Material
Hello Adam and List, I read this article today and was impressed with the creative ideas and positive approach of bringing awareness of planetary meteorites to the rest of the world. Agreed! But the media shouldn't call a meteorite a meteor ;-) = A fragment of NWA 998, a meteor from Mars = Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] New Thin Sections
Hello Thin Section Lovers, I just see that Marcin has loaded 23 new thin sections. Really worth taking a look if you love thin sections! http://www.polandmet.com/_thin_sections.htm TS33 and TS34 are already gone but I won't tell you who grabbed these two diogenite thin sections ;-) Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mars Rover Opportunity Approaching Possible Meteorite
Hello Ron and List, http://www.jpl.nasa.gov/news/news.cfm?release=2010-309 Looks like it is shield-shaped and if that is real, it will probably be flight-oriented like that big Sikhote-Alin shield, which weighs 1745 kg. Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] RFSPOD - September 20, 2010
http://www.rocksfromspace.org/September_20_2010.html Phew! That would sure be a nice beginner's collection! ;-) Salivating, Bernd (proud owner of a huge 0.193-gram chunk of Puerto La Pice + thin section :-) Laurence, Michael, thanks for sharing! __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Test
trying to find out why I can't post - maybe a text-only thing Hi David, Now we can hear you. Yes, it's a text-only format. HTML formats or other formats don't make it to the List! Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Need Photo Permission - Saharan Landscape Shot, Moroccan Marketplace
Hello All, I think the bw photo on page 12 of the Meteorite magazine (Feb 2003, vol. 9, no.1) is pretty close to the real thing: What are you doing alive? - On the Road to Safsaf (by Adam Hupé) Best wishes, Bernd P.S.: Also, I remember a similar photo showing Marcin doing business with some Moroccans! __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] RFSPOD - Sep 18, 2010 - THe Elbogen Iron
Mike B. wonders: It is also interesting that NHMV's label suggests that they do not recognize Elbogen (ca. 1400) as the oldest iron fall. Why? http://www.rocksfromspace.org/September_18_2010.html Hello Mike and List, They do not recognize Elbogen as the oldest iron fall because it is *not* a witnessed fall. In his trilogy, Vagn Buchwald only wrote: the exterior shape of the mass certainly suggests a well-preserved fall. ..Elbogen was probably plowed up sometime around the year 1400 and soon became associated with the simultaneous death (killing?) of one of the hated burgraves. Reference: BUCHWALD V.F. (1975) Handbook of Iron Meteorites, Volume 2, pp. 557-560. -- Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] RFSPOD - Sep 18, 2010 - The Elbogen Iron
Hello Mike B. and List, An interesting aside concerning the Elbogen iron in the Catalogue(s) of Meteorites: = 3rd edition, p. 148: Elbogen, Bohemia. Fell 1400 (?) = 4th edition, p. 131: Elbogen ... Fell 1400, possible date = 5th edition, p. 185: Elbogen ... Fell 1400 Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Other hobbies?
Other hobbies? In a very particular order ;-) - stamps - Walt Disney cartoons - astronomy - gardening astronomy - minerals (especially the quartz group) - coins (especially Australian Kokaburra and Kangaroo) - meteorites - Pharaonic Egypt Egyptian hieroglyphics - meteorites and photographing thin sections dj ankh d.t nhh :-) Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] New USA Chondrite find
Sonny wrote: Here is a new chondrite that I found last week while exploring a remote area. The fusion crust is still visible after all of these years. http://www.nevadameteorites.com/nevadameteorites/ORDINARY_CHONDRITES.html Hi Sonny and List, Sincere congratulations on your latest US chondrite find! I assume you're talking about this 12.2-gram chondrite. Exceptionally interesting is that even though this meteorite looks quite weathered, the remnant fusion crust looks quite fresh as if the fusion crust had weathered the weathering influences! Best wishes from rainy Germany, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] A meteor shower burst
Hello Steve and List, The only meteor sightings I could find in my Sky Telescope back issues for September do not fit the information you have provided...unfortunately. Here is what I found in the September 1981 issue, p. 236: New meteor shower. Last year, P. MacKinnon and R.A. Keen of Boulder, Colorado, announced a possible new meteor shower from the direction of southern Lyra or Cygnus. Despite fairly poor sky conditions, on September 16th, 17th, and 18th G. Kiladis had noticed that about 15 or 20 meteors per hour seemed to be aligned with a radiant near right ascension 19.0h, declin- ation +25°. A good number of them were of magnitude 2 or brighter. A few weeks later, MacKinnon and Keen themselves noted a similar hourly rate for a radiant at about declination +32°, near right ascension 20.3h (October 1st) and 21.2h (October 5th and 6th). Because a meteor shower radiant is a perspective effect, it is usual for the direction to shift eastward during the several weeks it takes the Earth to pass through a meteor stream. Therefore, it is possible that these observers witnessed a hitherto undetected meteor stream. Opposing this view, however, are P. Roggemans and several other Belgian observers, who did not find any meteors associated with a radiant in this part of the sky for the same range of dates. These conflicting reports appeared late in 1980, in IAU Circulars 3528, 3542, and 3545. --- Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] OT - Those we must remember
Thank you, Greg! Very much appreciated! So many years have passed and it still sends shivers down my spine. And, yet again, there were tears in my eyes when I watched and relived those terrible moments on TV while listening to the victims' names and the messages their loved ones had written. All My Best from Germany, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] September Issue of Meteorite Times Now Up
Rob L. kindly wrote: Thanks Paul and Jim! I think your Meteorite-Times is one of those initiatives here on the List, that is very much appreciated, but doesn't get the explicit appreciation it deserves. Hello Rob and List, I couldn't agree more! Special thanks also to Chuck whose September contribution about NWA 2377 (L3.7) prompted me to once again put my 5.1-gram slice under the microscope and enjoy visually walking over it! Here is my description of this little partslice: Partslice purchased from the Hupés that displays well-defined chondrules large and small. The smaller chondrules are closely packed and there is abundant troilite. One chondrule found with thin troilite channels traversing it. NWA 2377 is rich in porphy- ritic chondrules that contain abundant, translucent light-green hypersthene crystals. Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] RFSPOD September 09, 2010 - (slightly off-topic)
Anita wrote: Ah, the colors of Fall... Emily Dickinson (1830-86) the daughter of Edward Dickinson, a prominent lawyer of Amherst, Massachusetts. Here is one of her many short poems: Autumn The morns are meeker than they were, The nuts are getting brown, The berry's cheek is plumper, The rose is out of town. The maple wears a gayer scarf, The field a scarlet gown. Lest I should be old-fashioned I'll put a trinket on. --- Cheers, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteor Crater Impactor?
Eric wondered: Can someone tell me the proposed/accepted angle of descent of the asteroid which formed Meteor Crater in AZ? The trajectory of the impacting body was interpreted by Shoemaker as traveling north-northwest at a relatively low impact angle. and furthermore: Wikipedia has the impactor at 50 meters across, and velocity at 12.8 km/s. Is this accurate? The authors write themeteorite had a velocity in the range of about 13 to 20 km/s, probably in the lower part of this range and estimated the coherent meteorite diameter to have been 45-50 m with a mass of 300,000 - 400,000 tons! Reference: D.J. Roddy, E.M. Shoemaker (1995) Meteor Crater: Summary of impact conditions (Meteoritics 30-5, 1995, p. 567). - Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteor Crater Shape and Entry Angle
Eric wrote: The crater is not perfectly round as would be expected from an impactor coming in at a sharper angle. In fact the crater is more elliptical in shape. SHOEMAKER E.M. and KIEFFER S.W. (1974, 1979) Guidebook to the Geology of Meteor Crater, Arizona (Publ. No. 17, Center for Meteorite Studies, Arizona State University, Tempe, Arizona): Regional jointing has controlled the shape of the crater, which is somewhat squarish in outline; the diagonals of the square coincide with the trend of the two main sets of joints. The largest tears occur in the corners of the crater. Eric also inquired: What would a relatively low impact angle be? 10 degrees, 20 degrees? I tried to find more precise information on that but was unable to find something that might be of help here. Maybe someone else can shed more light on this! Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Modest attempt ...
of a translation: Annonce: Ein Hündchen wird gesuchet, Das weder murrt noch beißt, Zerbrochene Gläser frißt Und Diamanten... Advertisement: Looking for a doggie One that doesn't snarl nor bite Broken glass I would feed And diamonds it would sh... Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Gebel Kamil on Voyage Botanica
Hello All, Oh, girls and boys! Just back from my voyage to Gebel Kamil on Voyage Botanica ... Wish I had my Dukatenesel handy as we say in German. A Dukatenesel is a fairy story character, a donkey that ... well, whose droppings are coins. All you have to do is tell that nice and friendly creature how many coins you need, and, presto... :-) Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Sad news about Richard Willey
Twink writes: on August 28th Richard Willey died of natural causes in Dallas,Texas. He of course is the author of the book The Tucson Meteorites: Their history from frontier Arizona to the Smithsonian and he spent years searching for the source of the Tucson Ring along with others. May he rest in peace! I am so glad I have a copy of his book. So am I! Bernd *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* * * * Richard R. Willey (1987/1989) The Tucson Meteorites * * * __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Sad news about Richard Willey
Sorry for the typo! * * * Richard R. Willey (1987/1997) The Tucson Meteorites * * * __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Glenn Huss 2nd meteorite collection
Comment: Nat.Hist. Museum in Frankfurt, where the MPI collection is kept on permanent loan (but not on display) now. Jutta Zipfel (former member of the MPI and authoress of many excellent treatises on meteorites) is the curator of that collection, so we can be confident and sure that it is in good hands and well looked after! My two -cents, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks from Space Picture of the Day - August 30, 2010
Darryl Pitt wrote: (Any guesses?) The particulars of this specimen are 9x11mm and 1.1 grams, and it is largely, if not entirely, crystalline. http://www.rocksfromspace.org/August_30_2010_Macovich.html My guess: an angrite, maybe paired with NWA 4590 (Tamassint). Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NWA 6309 - The most Meteorwrong-like eucrite :D
.. and lots of plagioclase! Beautiful eucrite! Congrats! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Holbrook Tektites ( Heat Testing of Tektites)
Hello Brian, Dennis, Mark, Carl and List, Brian wrote: Obsidian explodes when heated quickly. So - it is easy to eliminate an Obsidian as a Tektite, just by throwing alot of heat at it quickly. In May or June 2000, our late Jim Kriegh put his new welding torch on an Apache Tear, and, ... ... it exploded! Jim once had a chemist friend heat one of the numerous Arizonaites he and Twink had collected (and that's probably what Carl is talking about in his post to the List: Years ago I found what I thought was a strewnfield of tektites in Southern AZ) in an oven along with an Apache tear. The Apache Tear foamed as the water started coming out of it but the AZite (Jim once called them Arizona whatevers :-) showed no signs of water. The chemist friend then even raised the temperature another 500°F above what the Apache Tear started foaming and all the Arizonaite did was glow red. After cooling it looked the same as before. Twink told me that during another heating experiment, one of their AZites turned bright red, fell into three pieces and then returned looking normal. 18 of these enigmatic glasses reside in my meteorite collection, and, yes, their coloration in transmitted light is that of so-called Columbianites. Best wishes from rainy, thundery, stormy Southern Germany, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Holbrook Tektites ( Heat Testing of Tektites)
Hello Mark, Carl, List, Mark wrote: I have collected a few of the Arizonaites (Saffordites?) in the field and when I first saw them, I was fooled into thinking they were tektites. They look to be solution weathered and I wonder if that in some way removed the water that normally is in obsidian (?). 09 Apr 1999, our late tektite expert Darryl Futrell wrote to the MetList: I have many examples. I found some beauties east of *Safford*, Arizona back in the 1960s. Three are illustrated in the May 1967 issue of Sky Telescope. Some start out as Apache tears (Safford site) others break out of obsidian flows. Often they become worn down to oval shapes that look like splashform tektites. But all I have ever seen are banded, whereas splashform tektites all have a contorted flow structure. Sometimes they even have tektite-like colors, but they are never of tektite quality they will eventually devitrify. Photos of two of them are in the April 1972 Lapidary Journal (by Barnes). -- Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Chladniite
Here are two references: McCOY T.J. et al. (1993) Chladniite: A new mineral honoring the father of METEORITICS (Meteoritics 28-3, 1993, A394). McCOY T.J. et al. (1994) Chladniite, Na2CaMg7(Po4)6: A new mineral from the Carlton IIICD iron meteorite (Am. Mineral. 79, 375-380). Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Magnetic properties (Was: Magnet canes are evil)
Eric wrote: I don't really know the importance of the magnetic property issue The importance lies in the possibility to determine exactly what kind of meteorite it is, an H.x, an L.x, an LL.x, etc. According to Pierre Rochette et al. (2003), this parameter (actually a measure of the amount of Ni-poor metal - kamacite) is in the range of: = 5.1-5.5 for H chondrites = 4.6-5.0 for L chondrites = 3.6-4.5 for LL chondrites The weathering degree can influence these values (a decrease of ca. 0.1 per WG) Best wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Test
.. please ignore! Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Chladnite (Was: Rocks from Space Picture of the Day - August 24, 2010)
Hello List, Richard wrote: Chladnite? I see this fall is now classified as a diogenite but could anyone discuss the term Chladnite a bit more? - TSCHERMAK G. (1885) Die mikroskopische Beschaffenheit der Meteoriten (Stuttgart E. Schweizerbart'sche Verlagshandlung, E. Koch, 23 pp.). English Translation: The Microscopic Properties of Meteorites, Vol. 4, No. 6 (Smithsonian Contributions to Astrophysics, Washington, D.C., 1964). Translation by J.A. Wood and E.M. Wood. Excerpts: Chladnites This combination of minerals has been found in only one meteorite, Bishopville. The stone is coarse grained and consists mostly of friable snow white enstatite. Rose observed other white grains, but could not identify them. I find these to be plagioclase. The third constituent is pyrrhotite. The stone's crust has a marbled appearance, being partly colorless, partly black, white, bluish, and gray. Enstatite occurs in large and small grains, mostly large. I observed distinct crystal boundaries on one of the small grains, ...The grains are cut by many fine, irregular cracks ... Plagioclase is usually attached to the small enstatite grains...Pyrrhotite forms large and small grains... The analysis of Rammelsberg (1861), which found Al2O3, CaO, and alkalis in small amounts, in addition to the ingredients of enstatite, is in full agreement with the microscopic description just given. Rose also reports small amounts of nickel-iron and a black mineral that sometimes fills fine cracks. Breaking the stone along such cracks, I observed a shiny material, similar to that in meteorites to be described later, in which the veins consist of iron, pyrrho- tite, and silicate glass... Diogenites This class differs little in mineralogy from the preceding one. The main constitutent is bronzite or hypersthene; these minerals and enstatite are members of the same series. Therefore the d i s t i n c t i o n between *chladnite* and *diogenite* depends only on c o n t e n t of f e r r o u s o x i d e. -- Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] More on Chladnite (Was: Rocks from Space Picture of the Day - August 24, 2010) - Part 2
BURKE J.G. (1986) Cosmic Debris, Meteorites in History, Chapter 4, p. 121: Chladnite: Again, it was an observation by Charles U. Shepard that paved the way toward the identification of the pyroxenes. In 1846 he described a mineral which, he wrote, is a ter-silicate of magnesia...[and] forms more than two-thirds of the Bishopville stone. He named the mineral chladnite in honor of Chladni, the scientific founder of this department of knowledge. Two years later Shepard reported his analytical results: 70 percent silicic acid, 28 percent magnesia, and 1 percent soda, so that the ratio of oxygen in the magnesia to that in the silica was 1 to 3. In 1851 Sartorius von Waltershausen analyzed a fragment of the Bishopville meteorite and arrived at about the same results, but also found 1.5 percent alumina. Though making errors in his calculations, Sartorius did produce the correct formula - MgO,SiO2; however, he postulated that chladnite was a kind of wollastonite, in which magnesia substituted for lime. The issue was confused further in 1861, when Rammelsberg found by analysis almost 3 percent alumina, 35 percent magnesia, and only 57.5 percent silicic acid. Doubting the existence of a definite mineral, Rammelsberg did not attempt to devise a chemical formula. Meanwhile, Shepard in 1854 described the Tucson iron meteorite and speculated that certain inclusions were chladnite. J. Lawrence Smith immediately corrected him, pointing out that the inclusions were actually olivine, and added a note that he suspected chladnite is likely to prove a pyroxene. At about the same time, in 1855, Gustav A. Kenngott, professor of mineralogy at Zurich, published a memoir giving details of the minerals of what he termed the augite group of the pyroxenes. One member of the group was enstatite, which, Kenngott wrote, was a bisilicate of magnesia, was augitic in crystallization, and had the formula 3MgO,2SiO3. In 1861, when Kenngott saw Rammelsberg's analysis of chladnite, he insisted that the mineral was identical with enstatite. Smith then made two analyses of the Bishopville meteorite and reported in 1864 that chladnite consisted of 60 percent silica and nearly 40 percent magnesia. He agreed with Kenngott that the mineral was the magnesian pyroxene, enstatite, and accepted Kenngott's formula, in which the oxygen content of the magnesia to that of the silica was 1 to 2. Both Rammelsberg and Maskelyne acted to clarify the formula of enstatite, and through his work on the Breitenbach, Bustee, and Manegaon meteorites, Maskelyne recognized the existence of solid-solution series that included enstatite and bronzite. By the 1870s mineralogists began to report regularly these constituents in meteorites. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Flattest Complete Meteorite
Larense wrote: it is 2 x 1.3 x 0.15 cm...it weights just one gram The flattest complete meteorite in my meteorite collection is the 3.1-gram Al Mahbas pallasite individual I purchased from the Hupés. It measures 1.97 x 1.78 x 0.53 cm. Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Flattest Complete Meteorite
Wow, that's what's called a flat one! The Hupés sell 'em? There are actually two Al Mahbas pieces in my collection, one of these came from John Birdsell and it is an endcut weighing 5.926 grams. The other piece is this flat individual with a large olivine crystal that I acquired from the Hupés. Maybe it is a flat, weathered piece that once was part of a larger specimen. I just recall another, extremely flat individual from my collection: Veevers, IIAB,...a small, lenticular (or kidney-shaped) individual weighing 4.2 grams from Eric Olson and measuring a mere 1.86 x 1.26 x 0.62 cm. Regards, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
