[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Unclassified NWA Contributed by: Jean-Michel Masson http://www.tucsonmeteorites.com/mpod.asp __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Met Bulletin Update - 3 new NWA's (H-Melt)
Hi Mike, all, Those H-melts almost seem like they are only partially classified. Most IMB usually have a petrologic grade associated with them as there is often a part of the meteorite that isn't completely melted. For example; NWA 7626 mentioned in the new updates says: The chondritic portion shows an unequilibrated texture This makes me think it should be something like H3-IMB or H4-IMB etc. Same principle for NWA 7627 which also mentions a Chondritic portion. H-IMB are not that rare. Adam Bates' NWA 7534 is a beautiful and very recent example of one such meteorite. (http://www.ebay.com/itm/281079330057) Gao, Chergach and DHO 010 are other H examples that immediately spring to mind. Cheers, Jeff -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Galactic Stone Ironworks Sent: Monday, 27 May 2013 1:50 AM To: Meteorite List Subject: [meteorite-list] Met Bulletin Update - 3 new NWA's (H-Melt) Hi Bulletin Watchers, Three new approvals today. Two of them are H-melts - the first from outside Antarctica. Link - http://www.lpi.usra.edu/meteor/metbull.php?sea=sfor=namesants=falls=vali ds=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmbl ist=Allrect=phot=snew=1pnt=Normal%20tabledr=page=0 Best regards and happy huntings, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/GalacticStone Pinterest - http://pinterest.com/galacticstone RSS - http://www.galactic-stone.com/rss/126516 - __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Projectile Remnants in Central Peaks of Lunar Impact Craters
Surprise! Moon Craters May Hold Ancient Asteroid Pieces by Mike Wall, SPACE.com, May 26, 2013 http://www.space.com/21306-moon-craters-asteroid-impacts.html Moon may harbour alien minerals: Study The Daily Telegraph, APF, May 27, 2013 http://www.dailytelegraph.com.au/technology/sci-tech/moon-may-harbour-alien-minerals-study/story-fni0c0qq-1226651410767 Alien Debris Found in Lunar Craters by Larry O'Hanlon, May 26, 2013 http://news.discovery.com/space/asteroids-meteors-meteorites/alien-debris-found-lunar-craters-130526.htm The publications are: Yue,Z., B. C. Johnson, D. A. Minton, H. J. Melosh, K. Di, W. Hu, and Y. Liu, 2013, Projectile remnants in central peaks of lunar impact craters. Nature Geoscience. Published online 26 May 2013 doi:10.1038/ngeo1828 http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo1828.html Johnson, B. Z. Yue, D. Minton, H. J. Melosh, K. Di, W. Hu, and Y. Liu, 2012, Projectile Remnants in Central Peaks of Lunar Impact Craters. P11A-1796, AGU 2012 Fall Meeting, San Francisco, California. http://fallmeeting.agu.org/2012/eposters/eposter/p11a-1796/ Yours, Paul H. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] (House-AD): Two special Chelyabinsk individuals with Brown Lee-side Crust - color-oriented!
Hello there, we have to share with you a pretty exciting observation. It was here already on the list, that some of you found on the first-pick Chelyabinskis places with a brownish, nevertheless fresh fusion crust. That phenomenon btw. you had sometimes also on a few Tissints, there the brown crust was even translucent (were horribly difficult to sell, because people watching the photos were skeptical, thought, they wouldn't be fresh, but weathered - and that, where no iron is present in Tissint to rust). Many of you blossomed during the last 3 months into true Chelyabinsk-experts, so please, pay attention to those two individuals and tell us your opinion: 75.45g http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_03.JPG 68.37g http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_03.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_04.JPG Well, baffling, aren't they? Both of them have a side, and ONLY one side, which is fully coated by the brown crust, while all other sides are black, as usual. Here: http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG And here: http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG And you see, that the brown-side is framed all around by a lipping, which is black, hence most would therefore say, only because of the rollover-lip, that the stones are flight-oriented. At least one can say, by means of the circular lipping around the edges, that the stones had for a longer time a stable position in flight. And that the brown side is the backside, the lee-side. And what is striking, is, that the lipping overlaps the brown crust, hence the brown crust must have formed simultaneously, while the front surface was melting. Now one could speculate, what could have caused that different crust - from the chip missing in one of the stones, we see that the material beneath the brown crust isn't special (anyway, on the sides the fusion crust for the same material is black). Thus maybe the different color could stem from a lack of oxygen, when it melted, on the lee-side of the stone in flight, where one has a low pressure/partial vacuum? We think, one could even speak of a new category of orientation: COLOR-ORIENTED! Well, if you like to have them, what shall we do with so special specimens... Let's make 20$/g to be among the very cheapest Chelyabinsk-offerers, + 50cents for the lipping, where others would scream: oriented, oriented! + 1.5$/g for the fantastic color-orientation... Makes22$/g. Fascinating, aren't they? Your Meteorite House Team __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Met Bulletin Update - Heyetang (China), Oman, and NWA
Hi Bulletin Watchers, The Chinese are on a classification roll. First Xining is finally classified. Now, after a wait of about 15 years, the 1998 fall Heyetang is now official. Other new meteorites include some achondrites and a pallasite from the hot deserts. All new approvals - http://www.lpi.usra.edu/meteor/metbull.php?sea=sfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=1pnt=Normal%20tabledr=page=0 Heyetang (L3) - http://www.lpi.usra.edu/meteor/metbull.php?code=57473 Heyetang27°14' 48.73 N, 111°19' 18.72 E Hunan, China Fell: late October 1998 Classification: Ordinary chondrite (L3) History: In late October, 1998, Mr. Wen and his friends heard a loud shrill sound and saw a fireball and subsequent landing of a meteorite about 200 m away. The meteorite embedded itself in a recently harvested rice field. The stone was said to be hot after being dug from the hole. It was bought by IGGCAS in August, 2012. Physical characteristics: The 2.5 kg meteorite is an almost complete rounded stone covered by black fusion crust. Small light gray-colored chondrules set in matrix are evident. Rust spots on the surface. Petrography: (G. Wang GIGCAS. W. Shen and S. Hu, IGGCAS). Chodrules 100-1500 μm in diameter, average ~300 μm. The chondrules/matrix ratio is about 5. The abundance of metal and sulfide is about 5 vol%. Geochemistry: (G. Wang, X. Jiang and D. Wang, GIGCAS; W. Shen, S. Hu and Y. Lin, IGGCAS). Olivine, Fa6.69-33.5, low Ca-pyroxene, Fs1.70-40.3Wo0.09-5.71. Opaque minerals dominated by sulfide, kamacite, and taenite with minor limonite. The average content of Co is 7.1 mg/g in kamacite. Classification: Ordinary chondrite, L3, S2, W1. Specimens: Most of the sample is on deposit at IGGCAS. About 90 g of sample is on deposit at GIGCAS. Best regards and happy huntings, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/GalacticStone Pinterest - http://pinterest.com/galacticstone RSS - http://www.galactic-stone.com/rss/126516 - __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented!
Dear Martin and All, That's very interesting indeed and I also have a meteorite that shows some similarities with your description, Martin. You can have a look at:http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/bengueri r-79.6g(1).jpg where you will see a Benguerir fragment showing two different colours of fusion crust: very black on one side and brownish on the other side. Here again, no oxidation from the stay on the earth's ground and the darker fusion crust overlaps the brownish one. My guess at the time I got it, was simply a matter of primary fusion crust (the brownish one) and secondary fusion crust (the darker one). Could it be a matter of altitude where it was formed? Speed temperature of fusion?... Have a great day! Frederic Beroud www.meteoriteshow.com IMCA #2491 -Message d'origine- De : meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] De la part de Martin Altmann Envoyé : lundi 27 mai 2013 14:26 À : meteorite-list@meteoritecentral.com Objet : [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented! Importance : Haute Hello there, we have to share with you a pretty exciting observation. It was here already on the list, that some of you found on the first-pick Chelyabinskis places with a brownish, nevertheless fresh fusion crust. That phenomenon btw. you had sometimes also on a few Tissints, there the brown crust was even translucent (were horribly difficult to sell, because people watching the photos were skeptical, thought, they wouldn't be fresh, but weathered - and that, where no iron is present in Tissint to rust). Many of you blossomed during the last 3 months into true Chelyabinsk-experts, so please, pay attention to those two individuals and tell us your opinion: 75.45g http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_03.JPG 68.37g http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_03.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_04.JPG Well, baffling, aren't they? Both of them have a side, and ONLY one side, which is fully coated by the brown crust, while all other sides are black, as usual. Here: http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG And here: http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG And you see, that the brown-side is framed all around by a lipping, which is black, hence most would therefore say, only because of the rollover-lip, that the stones are flight-oriented. At least one can say, by means of the circular lipping around the edges, that the stones had for a longer time a stable position in flight. And that the brown side is the backside, the lee-side. And what is striking, is, that the lipping overlaps the brown crust, hence the brown crust must have formed simultaneously, while the front surface was melting. Now one could speculate, what could have caused that different crust - from the chip missing in one of the stones, we see that the material beneath the brown crust isn't special (anyway, on the sides the fusion crust for the same material is black). Thus maybe the different color could stem from a lack of oxygen, when it melted, on the lee-side of the stone in flight, where one has a low pressure/partial vacuum? We think, one could even speak of a new category of orientation: COLOR-ORIENTED! Well, if you like to have them, what shall we do with so special specimens... Let's make 20$/g to be among the very cheapest Chelyabinsk-offerers, + 50cents for the lipping, where others would scream: oriented, oriented! + 1.5$/g for the fantastic color-orientation... Makes22$/g. Fascinating, aren't they? Your Meteorite House Team __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Help ID Possibly Miniature Impact Craters
Can anyone help ID these what look like miniature impact craters in the rock. Found in NW Nevada area. I hunted the area looking for other rocks which had similar features but could not find any. Pics in Links below. Thanks for any help on this. Dave https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-ash3/600642_196022673884097_1723283801_n.jpg https://sphotos-a.xx.fbcdn.net/hphotos-ash3/581230_196022750550756_1968018956_n.jpg https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash3/576821_196022820550749_1036147555_n.jpg dolandave.libuszow...@facebook.com __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented!
Hi All again, It seems that my link didn't work; let me try again, actually I have several pictures: http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(1).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(7).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(6).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(3).jpg Cheers Fred www.meteoriteshow.com IMCA #2491 -Message d'origine- De : meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] De la part de Martin Altmann Envoyé : lundi 27 mai 2013 14:26 À : meteorite-list@meteoritecentral.com Objet : [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented! Importance : Haute Hello there, we have to share with you a pretty exciting observation. It was here already on the list, that some of you found on the first-pick Chelyabinskis places with a brownish, nevertheless fresh fusion crust. That phenomenon btw. you had sometimes also on a few Tissints, there the brown crust was even translucent (were horribly difficult to sell, because people watching the photos were skeptical, thought, they wouldn't be fresh, but weathered - and that, where no iron is present in Tissint to rust). Many of you blossomed during the last 3 months into true Chelyabinsk-experts, so please, pay attention to those two individuals and tell us your opinion: 75.45g http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_03.JPG 68.37g http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_03.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_04.JPG Well, baffling, aren't they? Both of them have a side, and ONLY one side, which is fully coated by the brown crust, while all other sides are black, as usual. Here: http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG And here: http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG And you see, that the brown-side is framed all around by a lipping, which is black, hence most would therefore say, only because of the rollover-lip, that the stones are flight-oriented. At least one can say, by means of the circular lipping around the edges, that the stones had for a longer time a stable position in flight. And that the brown side is the backside, the lee-side. And what is striking, is, that the lipping overlaps the brown crust, hence the brown crust must have formed simultaneously, while the front surface was melting. Now one could speculate, what could have caused that different crust - from the chip missing in one of the stones, we see that the material beneath the brown crust isn't special (anyway, on the sides the fusion crust for the same material is black). Thus maybe the different color could stem from a lack of oxygen, when it melted, on the lee-side of the stone in flight, where one has a low pressure/partial vacuum? We think, one could even speak of a new category of orientation: COLOR-ORIENTED! Well, if you like to have them, what shall we do with so special specimens... Let's make 20$/g to be among the very cheapest Chelyabinsk-offerers, + 50cents for the lipping, where others would scream: oriented, oriented! + 1.5$/g for the fantastic color-orientation... Makes22$/g. Fascinating, aren't they? Your Meteorite House Team __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD:HED, Imichil ,R6,Big OC and few items
Hello Lists I hope everyone is well! am offering some few items at competitive prices thanks to take a look via this Link http://www.flickr.com/photos/62957552@N06/ if you are interested, please contacte me off list! Best greetings -- Rachid Chaoui IMCA # 4157 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA To Discuss Curiosity Radiation Findings
May 27, 2013 Trent J. Perrotto Headquarters, Washington 202-358-1100 trent.j.perro...@nasa.gov MEDIA ADVISORY: M13-085 NASA DISCUSSES CURIOSITY RADIATION FINDINGS WASHINGTON -- NASA will host a media teleconference at 2:30 p.m. EDT Thursday, May 30, to present new findings from the Mars Science Laboratory Radiation Assessment Detector (RAD) aboard the rover Curiosity. The journal Science has embargoed details until 2 p.m. May 30. The briefing participants are: -- Donald M. Hassler, RAD principal investigator and program director, Southwest Research Institute (SwRI), San Antonio -- Cary Zeitlin, principal scientist, SwRI -- Eddie Semones, spaceflight radiation health officer, NASA's Johnson Space Center, Houston -- Chris Moore, deputy director of advanced exploration systems, NASA Headquarters, Washington For dial-in information, media representatives should e-mail their name, affiliation and telephone number to Trent Perrotto at trent.j.perro...@nasa.gov by noon May 30. SwRI and Christian Albrechts University in Kiel, Germany, built RAD with funding from NASA's Human Exploration and Operations Mission Directorate and Germany's national aerospace research center, Deutsches Zentrum für Luft- und Raumfahrt. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Science Laboratory Project. NASA's Science Mission Directorate in Washington manages the Mars Exploration Program. Visuals will be posted at the start of the teleconference on NASA's Mars Science Laboratory website at: http://go.nasa.gov/curiositytelecon Audio of the teleconference will be streamed live on NASA's website at: http://www.nasa.gov/newsaudio -end- __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD-Outstanding Auction Listings Ending - MUST SEE!
Dear List Members, I have some great planetary specimens ending tonight and tomorrow at auction. At the very minimum, you should check out the fantastic NWA 5000 lunar specimen ending in about 5 or 6 hours. I also have many excellent examples ending tomorrow night. It will be awhile before I run any more Monday Night Special auctions as I need to concentrate on artifact sales. You have to check this out: LEGENDARY Northwest Africa 5000 Lunar Meteorite .902g HUGE - MUST SEE http://r.ebay.com/NOU1PC Link to all auctions: http://shop.ebay.com/raremeteorites!/m.html A few of tomorrow night's auction highlights: Dhofar 019 Very Rare Mars Martian Meteorite Slice .084g http://r.ebay.com/fFDxhO NWA 1110 Olivine Phyric Mars Martian Meteorite 116mg http://r.ebay.com/XfOg0S NWA 3163 VERY Rare Granulitic Lunar Meteorite .052g http://r.ebay.com/XEUSLv NWA 4880 Rare Martian Shergottite Mars Meteorite .106g CRUSTED! http://r.ebay.com/BQP8SY LEGENDARY Northwest Africa 5000 Lunar Meteorite .612g BIG!! http://r.ebay.com/DE8CKU NWA 5406 Very Nice Lunar Moon Meteorite .096g http://r.ebay.com/mKL1YL Link to all auctions: http://shop.ebay.com/raremeteorites!/m.html Thank you for looking and if you are bidding, good luck, Adam Hupe The Hupe Collection __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] (House-AD): ORANGE fresh Chelyabinsk (was: Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented!)
Hi Fred, Exactly and Wow! With your Bensour it seems that just the same had happened! Has also the black rim! My guess at the time I got it, was simply a matter of primary fusion crust (the brownish one) and secondary fusion crust (the darker one). Could it be a matter of altitude where it was formed? Speed temperature of fusion?... There we definitely have to ask our experts of aerodynamics and chemistry here. To me it's evident, because the black crust lips over the brown one, that that brown on the back must have been formed before the crust on the apex. There are going things in flight on the back of the stones remember the Tamdakht-Couscous or the 12.5kg-flat heat-shield, which had also such fragments incorporated in the skin.. Now these color-crusts with Chelyabinsk (and Tissint). Here, look, our most shocking example! Is something for Jan, Menno or Rob, Because half of the stone is almost:ORANGE! Has 63.55g These sides are normal: http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_02.JPG But look at that! http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_03.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_04.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_05.JPG Hmm, shall we sell it too? O.k :-) Your Meteorite House Von: Meteoriteshow [mailto:meteorites...@free.fr] Gesendet: Montag, 27. Mai 2013 17:32 An: 'Martin Altmann'; meteorite-list@meteoritecentral.com Betreff: RE: [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented! Hi All again, It seems that my link didn't work; let me try again, actually I have several pictures: http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(1).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(7).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(6).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(3).jpg Cheers Fred www.meteoriteshow.com IMCA #2491 -Message d'origine- De : meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] De la part de Martin Altmann Envoyé : lundi 27 mai 2013 14:26 À : meteorite-list@meteoritecentral.com Objet : [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented! Importance : Haute Hello there, we have to share with you a pretty exciting observation. It was here already on the list, that some of you found on the first-pick Chelyabinskis places with a brownish, nevertheless fresh fusion crust. That phenomenon btw. you had sometimes also on a few Tissints, there the brown crust was even translucent (were horribly difficult to sell, because people watching the photos were skeptical, thought, they wouldn't be fresh, but weathered - and that, where no iron is present in Tissint to rust). Many of you blossomed during the last 3 months into true Chelyabinsk-experts, so please, pay attention to those two individuals and tell us your opinion: 75.45g http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_03.JPG 68.37g http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_03.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_04.JPG Well, baffling, aren't they? Both of them have a side, and ONLY one side, which is fully coated by the brown crust, while all other sides are black, as usual. Here: http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG And here: http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG And you see, that the brown-side is framed all around by a lipping, which is black, hence most would therefore say, only because of the rollover-lip, that the stones are flight-oriented. At least one can say, by means of the circular lipping around the edges, that the stones had for a longer time a stable position in flight. And that the brown side is the backside, the lee-side. And what is striking, is, that the lipping overlaps the brown crust, hence the brown crust must have formed simultaneously, while the front surface was melting. Now one could speculate, what could have caused that different crust - from the chip missing in one of the stones, we see that the material beneath the brown crust isn't special (anyway, on the sides the fusion crust for the same material is black). Thus maybe the different color could stem from a lack of oxygen, when it melted, on the lee-side of the stone in flight, where one has a low pressure/partial vacuum? We think, one could even speak of a new category of orientation: COLOR-ORIENTED! Well, if you like to have them, what
Re: [meteorite-list] (House-AD): ORANGE fresh Chelyabinsk (was: Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented!)
A theory from the peanut gallery - Perhaps what we are seeing here is a product of the process of orientation. Maybe during the phase where the crust is liquified and flowing, certain more volatile elements will be burned off, and the remaining crustal material gathers on the trailing side of the meteorite and cools - but since it's chemistry has changed, it has a different visual appearance of color. This brown/black curiosity seems to be evident on falls that have stones known to be oriented or with well-rounded features - the blockier types of stones do not show this kind of process. ??? -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/GalacticStone Pinterest - http://pinterest.com/galacticstone RSS - http://www.galactic-stone.com/rss/126516 - On 5/27/13, Martin Altmann altm...@meteorite-martin.de wrote: Hi Fred, Exactly and Wow! With your Bensour it seems that just the same had happened! Has also the black rim! My guess at the time I got it, was simply a matter of primary fusion crust (the brownish one) and secondary fusion crust (the darker one). Could it be a matter of altitude where it was formed? Speed temperature of fusion?... There we definitely have to ask our experts of aerodynamics and chemistry here. To me it's evident, because the black crust lips over the brown one, that that brown on the back must have been formed before the crust on the apex. There are going things in flight on the back of the stones remember the Tamdakht-Couscous or the 12.5kg-flat heat-shield, which had also such fragments incorporated in the skin.. Now these color-crusts with Chelyabinsk (and Tissint). Here, look, our most shocking example! Is something for Jan, Menno or Rob, Because half of the stone is almost:ORANGE! Has 63.55g These sides are normal: http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_02.JPG But look at that! http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_03.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_04.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_63_55_g_05.JPG Hmm, shall we sell it too? O.k :-) Your Meteorite House Von: Meteoriteshow [mailto:meteorites...@free.fr] Gesendet: Montag, 27. Mai 2013 17:32 An: 'Martin Altmann'; meteorite-list@meteoritecentral.com Betreff: RE: [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented! Hi All again, It seems that my link didn't work; let me try again, actually I have several pictures: http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(1).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(7).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(6).jpg http://meteoriteshow.free.fr/images/for_sale/July_2007/Benguerir/benguerir-7 9.6g(3).jpg Cheers Fred www.meteoriteshow.com IMCA #2491 -Message d'origine- De : meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] De la part de Martin Altmann Envoyé : lundi 27 mai 2013 14:26 À : meteorite-list@meteoritecentral.com Objet : [meteorite-list] (House-AD): Two special Chelyabinsk individualswith Brown Lee-side Crust - color-oriented! Importance : Haute Hello there, we have to share with you a pretty exciting observation. It was here already on the list, that some of you found on the first-pick Chelyabinskis places with a brownish, nevertheless fresh fusion crust. That phenomenon btw. you had sometimes also on a few Tissints, there the brown crust was even translucent (were horribly difficult to sell, because people watching the photos were skeptical, thought, they wouldn't be fresh, but weathered - and that, where no iron is present in Tissint to rust). Many of you blossomed during the last 3 months into true Chelyabinsk-experts, so please, pay attention to those two individuals and tell us your opinion: 75.45g http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_75_45_g_03.JPG 68.37g http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_01.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_03.JPG http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_04.JPG Well, baffling, aren't they? Both of them have a side, and ONLY one side, which is fully coated by the brown crust, while all other sides are black, as usual. Here: http://www.meteoritenhaus.de/img/Chelyabinsk_68_37_g_02.JPG And here:
