Re: [meteorite-list] Yeah, sure-gettite
Also the magnet was probably coated with double stick tape since he said it sticks to magnets in some parts. I think that is Red-Neck for in that one specific place where the tape is. I like the artwork explanation for the claim about being Martian. Go out and look at the Moon and Mars tonight! Rob H -- From: Ed Deckert edeck...@triad.rr.com Sent: Thursday, August 26, 2010 8:25 PM To: meteorite list meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Yeah, sure-gettite I really love ebay's definition of used that they manage to insert into all auctions for used items... Used: An item that has been used previously. I'm sure glad they pointed that out for everyone! LOL! Ed - Original Message - From: Don Giovanni grig...@operamail.com To: meteorite list meteorite-list@meteoritecentral.com Sent: Thursday, August 26, 2010 10:29 PM Subject: [meteorite-list] Yeah, sure-gettite If anyone has been looking for a Martian meteorite with the specific lithologies of shinny looking crystal type things (and better yet, they're imbeded) but maybe you only have $7,500.00 to spend, I may be able to point you in the right direction. It must be a sweet deal, as it was found in the high dessert. http://cgi.ebay.com/MARTIAN-METEORITE-micro-ART-ROCK-FOUND-DESERT-/320580714564?pt=LH_DefaultDomain_0#ht_500wt_1154 (PS - In case you're going back and forth but just not sure, the clincher.free shipping) (PPS - item condiion is listed as Used) Don __ 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 === Email scanned by PC Tools - No viruses or spyware found. (Email Guard: 7.0.0.18, Virus/Spyware Database: 6.15740) http://www.pctools.com/ === === Email scanned by PC Tools - No viruses or spyware found. (Email Guard: 7.0.0.18, Virus/Spyware Database: 6.15740) http://www.pctools.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 __ 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
Re: [meteorite-list] SouthWest Dry Lake Bed Thunderstorm pictures
Great story, Sonny. Thanks for sharing it. Glad you made it out alright! Linton - Original Message - From: wahlpe...@aol.com To: meteorite-list@meteoritecentral.com Sent: Thursday, August 26, 2010 8:04 PM Subject: [meteorite-list] SouthWest Dry Lake Bed Thunderstorm pictures Hi All, I added a few pictures from one of my recent hunting trips on my web page. Thanks, Sonny P.S. I am still looking for that first USA lunar in Nevada! ; ) http://www.nevadameteorites.com/nevadameteorites/Thunderstorm_over_a_Southwest_Dry_lakebed.html __ 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 __ 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] Paper on Risk Assessment of Tunguska-type Airbursts
Risk Assessment of Tunguska-type Airbursts by Mignan et al., Nat. Hazard J., 2010 http://www.springerlink.com/content/c34200750300l724/ Abstract The Tunguska airburst, which devastated a taiga forest over an area greater than 2,000 km2 in a remote region of Central Siberia in 1908, is a classic example of extraterrestrial encounter discussed in the asteroid/comet impact hazard and risk assessment literature (e.g. Longo 2007; Carusi et al. 2007). Although it is generally agreed that the cosmic body caused damage by bursting in the air rather than through direct impact on the Earth’s surface, the Tunguska event is often referred to as an impact event. To the best of our knowledge, no detailed studies have been performed to quantify the risk of a similar-sized event over a populated region. We propose here a straightforward probabilistic risk model for Tunguska-type events over the continental United States and use established risk metrics to determine the property (buildings and contents) and human losses. We find an annual average property loss of ~USD 200,000/year, a rate of ~0.3 fatalities/year and ~1.0 injuries/year ranging from a factor 3 below and to a factor 3 above the indicated values when a reasonable rate uncertainty for Tunguska-type events is taken into account. We then illustrate the case of an extreme event over the New York metropolitan area. While we estimate that this “nightmare” scenario would lead to ~USD 1.5 trillion of property loss, ~3.9 millions of fatalities and ~4.7 millions of injuries, such event is almost impossible (occurrence once every ~30 million years) and should only be considered as an illustrative example. A.M. The Tricottet Collection of Natural History Specimens (Minerals, Fossils Meteorites) www.thetricottetcollection.com Facebook: The Tricottet Collection Twitter: TricottetColl __ 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
Re: [meteorite-list] Holbrook Tektites ( HEAT TESTING of TEKTITES)
Greetings to Dennis, Mark and List Members HEAT TESTING OF TEKTITE Aubrey has some good interesting observations concerning Testing Tektites on his sight http://www.tektites.co.uk/tektite-tests.html Personally , I have access to professional Glass Blowers with tons of experience.. They work with Common , Borosilicate ( Pyrex ) and Dichroic Glasses. All types of Glass have different melting temperatures , and working together with the Top Production planner ( Brent ) who is versed in Heats and Flames required for melting these various types of glass, we set about to Heat Test Several Types of Tektite. Temperature is KEY to observations. Brent was aware of our goals and took time to test various temperatures as well as using test pieces and had far more information than I am able to convey simply. Lets just say that Coefficient of Expansion, Coloration and other physical properties were also in question during our tests. Glass melts at a relatively LOW Temperature, about 485 Centigrade / 900 Degrees Fahrenheit ( Varies with the amount and types of Alloys in the glass ) Bolorsilicate ( Pyrex ) at about 820 Centigrade / 1,510 Degrees Fahrenheit Thailandites, Philippinite , Moldavite and Quartz Glass melt at about 1,665 Centigrade / 3,029 Degrees Fahrenheit Libyan Desert Glass - we took it up to 1,815 Centigrade / 3,300 Degrees Fahrenheit and it was tacky on the surface , BUT did not Melt, as my friend stated it is laughing at us... We are still looking for a hotter Hydrogen Flame Unit to see what the actual melting point is. Darwin Glass - I have yet to test it, I forgot to bring samples. Maybe soon... 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. Glass and Borosilicate varies from Tektites , easily, by applying heat to samples of each set side by side, see what melts first .. Don't worry about destroying the Tektite , it will be safe since the glass will melt much sooner than any tektite, and if the Tektite melts at the same temperature as Glass ?? It was not a Tektite. Quartz Glass is rare and to find a piece while looking for Tektites is just to unlikely to ever happen. The reason Tektites can withstand such High Heat is that the impurities that allow Glass to melt at lower temperatures have been Burnt out of them already. MY THEORY: Thailandites, Philippinite and Darwin Glass have coloration from the residue left by these Burnt off elements. Heavily contaminated. Moldavite also gets its coloration from the Burnt off elements. Less Contamination Libyan Desert Glass is very clean and was intensely heated to remove even the residual left by burning off impurities. Minimal Contamination. Highest Regards to All Brian S. IMCA # 7381 http://stores.ebay.ca/AAJEWELCOM -- Date: Thu, 26 Aug 2010 13:15:36 -0400 From: cdtuc...@cox.net Subject: Re: [meteorite-list] Holbrook Tektites ( Magnet canes are evil) To: meteorite-list@meteoritecentral.com, Dennis Miller astror...@hotmail.com, Mark Bowling mina...@yahoo.com Dennis, Mark,List, Interesting you mention finding rocks that resemble certain tektites. You describe them as looking translucent and weathered with a tektite texture. Years ago I found what I thought was a strewnfield of tektites in Southern AZ. They too looked like what you found. I took them to ASU and Dr. Moore had his assistant attempt to melt one of them. He explained that a true tektite would simply melt like glass similar to the way a glass blower melts glass. If however it gets frothy and white it is not a tektite but likely natural obsidian glass. This had something to do with the amount of water. Apparently tektites are much dryer than obsidian. Well, they tested frothy and therefore deemed to be sand blasted obsidian. I believe he also said they are not magnetic. Some of mine were magnetic others were not. Curiously, I have since found that Surf-tumbled Sea glass has exactly the same appearance as these sand blasted obsidian orbs I found in the desert. The only difference is that sea glass does melt like tektites so, the melting test does not work on them. In fact other than the flanged buttons, to me many of the Tektites look more like Sea-glass than anything else. If you are unaware of it. Sea glass is largely a product of surf tumbled glass that has been littered or discarded by human activity in the past. If you Google it there are lots of people selling it. What I found looks like either Columbianite or Georgia Tektite. two different looking types all in the same find area. Really Makes me wonder about the true origin of Tektites. Carl -- Carl or Debbie Esparza Meteoritemax Mark Bowling mina...@yahoo.com wrote: Dennis, I have found?tiny glass spherules in some areas along the tracks - lots of them.? I think it's welding slag from RR operations.? I was pretty excited until
[meteorite-list] The storm and Lucerne Dry Lake
Sonny: You may not realize how very lucky you probably were. Most of the tme these are dry lakes, but they become real lakes very quickly. They are there because they are the low points of a basin, and very quickly collect all the runoff water from the surrounding areas. The Old Barstow Road (through the center of Lucerne Dry Lake) and the Old Woman Springs Road from the town of Lucerne Valley (hwy 247) (which it intersects with South of the lake, and which then continues to the East and up to Big Bear, was under 7 feet of water today as the storm came through, but apparently both are open again. I have seen that only once, in August, 1963 we went out to LDL right after a storm. The Barstow road dips to a low point midway across LDL and there is no drainage. It was impassable. It was interesting that as the water dissipated on the dl that it left washtub size pools a foot or so deep.Little crab-like creatures were swimming around (about an inch long). I understand these may become dormant when things dry out and then come to life when puddles reform. This must not be very often. Wonder what one might find now. Warning: Small children should stay away from the large cracks in the dl. This is the time that there is a lot of underground water draining away and the dry lake surface can cave in quite readily. This is also the time that buried meteorites wash out onto the surface, (Look a bit higher than the very low points on the dl.) Ron Hartman - Original Message - From: wahlpe...@aol.com To: Sent: Thursday, August 26, 2010 8:04 PM Subject: [meteorite-list] SouthWest Dry Lake Bed Thunderstorm pictures Hi All, I added a few pictures from one of my recent hunting trips on my web page. Thanks, Sonny P.S. I am still looking for that first USA lunar in Nevada! ; ) http://www.nevadameteorites.com/nevadameteorites/Thunderstorm_over_a_Southwest_Dry_lakebed.html __ 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 __ 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
Re: [meteorite-list] The storm and Lucerne Dry Lake
Hi Ron, I should have know better since I live in Nevada. I have seen many flash floods before. But as you know the allure of a new lake bed seemed to have blinded me temporarily. A good lesson learned. My wife and have seen those little crablike creatures before in sandstone water basins in Red Rock Canyon. It is amazing how these little tanks can be bone dry for years and then come to life with a little water. Warning: Small children should stay away from the large cracks in the dl. This is the time that there is a lot of underground water draining away and the dry lake surface can cave in quite readily. Two lakes in particular one in California and one in Nevada have sinkholes that are only visible when you come right up on top of them or can be seen from the air. The only indication in the one in California was a tiny raised edge and a crack or crevice on the far side. The sink hole was large enough to swallow an ATV. I never got close enough to determine the depth. I told my hunting partner we could figure out the depth and check out the sink hole if I lowered him down with a winch but he chickened out! : ) This is a good lesson for anyone who hunts on dry lake beds. Watch the clouds, watch for sinkholes, cracks and the occasional artillery shell. Sonny -Original Message- From: R N Hartman rhartma...@earthlink.net To: wahlpe...@aol.com Cc: Meteorite Central meteorite-list@meteoritecentral.com Sent: Fri, Aug 27, 2010 2:40 am Subject: [meteorite-list] The storm and Lucerne Dry Lake Sonny: You may not realize how very lucky you probably were. Most of the tme these are dry lakes, but they become real lakes very quickly. They are there because they are the low points of a basin, and very quickly collect all the runoff water from the surrounding areas. The Old Barstow Road (through the center of Lucerne Dry Lake) and the Old Woman Springs Road from the town of Lucerne Valley (hwy 247) (which it intersects with South of the lake, and which then continues to the East and up to Big Bear, was under 7 feet of water today as the storm came through, but apparently both are open again. I have seen that only once, in August, 1963 we went out to LDL right after a storm. The Barstow road dips to a low point midway across LDL and there is no drainage. It was impassable. It was interesting that as the water dissipated on the dl that it left washtub size pools a foot or so deep.Little crab-like creatures were swimming around (about an inch long). I understand these may become dormant when things dry out and then come to life when puddles reform. This must not be very often. Wonder what one might find now. Warning: Small children should stay away from the large cracks in the dl. This is the time that there is a lot of underground water draining away and the dry lake surface can cave in quite readily. This is also the time that buried meteorites wash out onto the surface, (Look a bit higher than the very low points on the dl.) Ron Hartman - Original Message - From: wahlpe...@aol.com To: Sent: Thursday, August 26, 2010 8:04 PM Subject: [meteorite-list] SouthWest Dry Lake Bed Thunderstorm pictures Hi All, I added a few pictures from one of my recent hunting trips on my web page. Thanks, Sonny P.S. I am still looking for that first USA lunar in Nevada! ; ) http://www.nevadameteorites.com/nevadameteorites/Thunderstorm_over_a_Southwest_Dry_lakebed.html __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list meteorite-l...@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list meteorite-l...@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ 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
Re: [meteorite-list] Holbrook Tektites ( HEAT TESTING of TEKTITES)
Very well done Brian! Thanks for sharing your results. Your experience with the LDG, Libyan Desert Glass - we took it up to 1,815 Centigrade / 3,300 Degrees Fahrenheit and it was tacky on the surface , BUT did not Melt This made me wonder again what others think of the idea that LDG is a glass meteorite and not a glass created in the same manor as most tektites. This is not original thinking on my part as I have heard it proposed as one of the theories on LDG. Any thought on this? Some samples of LDG are shaped more like a meteorite than a tektite aside from the fact that they are glass! Tom In a message dated 8/27/2010 3:24:13 A.M. Mountain Daylight Time, br...@aajewel.com writes: Greetings to Dennis, Mark and List Members HEAT TESTING OF TEKTITE Aubrey has some good interesting observations concerning Testing Tektites on his sight http://www.tektites.co.uk/tektite-tests.html Personally , I have access to professional Glass Blowers with tons of experience.. They work with Common , Borosilicate ( Pyrex ) and Dichroic Glasses. All types of Glass have different melting temperatures , and working together with the Top Production planner ( Brent ) who is versed in Heats and Flames required for melting these various types of glass, we set about to Heat Test Several Types of Tektite. Temperature is KEY to observations. Brent was aware of our goals and took time to test various temperatures as well as using test pieces and had far more information than I am able to convey simply. Lets just say that Coefficient of Expansion, Coloration and other physical properties were also in question during our tests. Glass melts at a relatively LOW Temperature, about 485 Centigrade / 900 Degrees Fahrenheit ( Varies with the amount and types of Alloys in the glass ) Bolorsilicate ( Pyrex ) at about 820 Centigrade / 1,510 Degrees Fahrenheit Thailandites, Philippinite , Moldavite and Quartz Glass melt at about 1,665 Centigrade / 3,029 Degrees Fahrenheit Libyan Desert Glass - we took it up to 1,815 Centigrade / 3,300 Degrees Fahrenheit and it was tacky on the surface , BUT did not Melt, as my friend stated it is laughing at us... We are still looking for a hotter Hydrogen Flame Unit to see what the actual melting point is. Darwin Glass - I have yet to test it, I forgot to bring samples. Maybe soon... 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. Glass and Borosilicate varies from Tektites , easily, by applying heat to samples of each set side by side, see what melts first .. Don't worry about destroying the Tektite , it will be safe since the glass will melt much sooner than any tektite, and if the Tektite melts at the same temperature as Glass ?? It was not a Tektite. Quartz Glass is rare and to find a piece while looking for Tektites is just to unlikely to ever happen. The reason Tektites can withstand such High Heat is that the impurities that allow Glass to melt at lower temperatures have been Burnt out of them already. MY THEORY: Thailandites, Philippinite and Darwin Glass have coloration from the residue left by these Burnt off elements. Heavily contaminated. Moldavite also gets its coloration from the Burnt off elements. Less Contamination Libyan Desert Glass is very clean and was intensely heated to remove even the residual left by burning off impurities. Minimal Contamination. Highest Regards to All Brian S. IMCA # 7381 http://stores.ebay.ca/AAJEWELCOM -- Date: Thu, 26 Aug 2010 13:15:36 -0400 From: cdtuc...@cox.net Subject: Re: [meteorite-list] Holbrook Tektites ( Magnet canes are evil) To: meteorite-list@meteoritecentral.com, Dennis Miller astror...@hotmail.com, Mark Bowling mina...@yahoo.com Dennis, Mark,List, Interesting you mention finding rocks that resemble certain tektites. You describe them as looking translucent and weathered with a tektite texture. Years ago I found what I thought was a strewnfield of tektites in Southern AZ. They too looked like what you found. I took them to ASU and Dr. Moore had his assistant attempt to melt one of them. He explained that a true tektite would simply melt like glass similar to the way a glass blower melts glass. If however it gets frothy and white it is not a tektite but likely natural obsidian glass. This had something to do with the amount of water. Apparently tektites are much dryer than obsidian. Well, they tested frothy and therefore deemed to be sand blasted obsidian. I believe he also said they are not magnetic. Some of mine were magnetic others were not. Curiously, I have since found that Surf-tumbled Sea glass has exactly the same appearance as these sand blasted obsidian orbs I found in the desert. The only difference is that sea glass does melt like tektites so, the melting test does
[meteorite-list] Tracing the Big Picture of Mars' Atmosphere (ExoMars)
http://www.jpl.nasa.gov/news/news.cfm?release=2010-280 Tracing the Big Picture of Mars' Atmosphere Jet Propulsion Laboratory August 26, 2010 One of the instruments on a 2016 mission to orbit Mars will provide daily maps of global, pole-to-pole, vertical distributions of the temperature, dust, water vapor and ice clouds in the Martian atmosphere. The joint European-American mission, ExoMars Trace Gas Orbiter, will seek faint gaseous clues about possible life on Mars. This instrument, called the ExoMars Climate Sounder, will supply crucial context with its daily profiling of the atmosphere's changing structure. The European Space Agency and NASA have selected five instruments for ExoMars Trace Gas Orbiter. The European Space Agency will provide one instrument and the spacecraft. NASA will provide four instruments, including ExoMars Climate Sounder, which is coming from NASA's Jet Propulsion Laboratory, Pasadena, Calif. Two of the other selected instruments are spectrometers -- one each from Europe and the United States -- designed to detect very low concentrations of methane and other important trace gases in the Martian atmosphere. To put the trace-gas measurements into context, you need to know the background structure and circulation of the atmosphere, said JPL's Tim Schofield, principal investigator for the ExoMars Climate Sounder. We will provide the information needed to understand the distribution of trace gases identified by the spectrometers. We'll do this by characterizing the role of atmospheric circulation and aerosols, such as dust and ice, in trace-gas transport and in chemical reactions in the atmosphere affecting trace gases. The ExoMars Climate Sounder is an infrared radiometer designed to operate continuously, day and night, from the spacecraft's orbit about 400 kilometers (about 250 miles) above the Martian surface. It can pivot to point downward or toward the horizon, measuring temperature, water vapor, dust and ices for each 5-kilometer (3-mile) increment in height throughout the atmosphere from ground level to 90 kilometers (56 miles) altitude. Schofield and his international team have two other main goals for the investigation, besides aiding in interpretation of trace-gas detections. One is to extend the climate mapping record currently coming from a similar instrument, the Mars Climate Sounder, on NASA's Mars Reconnaissance Orbiter, which has been working at Mars since 2006. The orbital geometry of the Mars Reconnaissance Orbiter mission enables this sounder to record atmospheric profiles only at about 3 p.m. and 3 a.m. during the Martian day, except near the poles. The ExoMars Trace Gas Orbiter will fly an orbital pattern that allows the spacecraft to collect data at all times of day, at all latitudes. We'll fill in information about variability at different times of day, and we'll add to the number of Mars years for understanding year-to-year variability, said Schofield. The most obvious year-to-year change is that some years have global dust storms and others don't. We'd like to learn whether there's anything predictive for anticipating the big dust storms, and what makes them so variable from year to year. A third research goal is to assist future landings on Mars by supplying information about the variable density of the atmosphere. At a chosen landing site, atmospheric density can change from one day to the next, affecting a spacecraft's descent. We want to provide background climatology for what to expect at a given site, in a given season, for a particular time of day, and also nearly real-time information for the atmospheric structure in the days leading up to the landing of a spacecraft launched after 2016, said Schofield. The 2016 ExoMars Trace Gas Orbiter is the first in a series of planned Mars mission collaborations of the European Space Agency and NASA. A variable presence of small amounts of methane in the Martian atmosphere has been indicated from orbital and Earth-based observations. A key goal of the mission is to gain a better understanding of methane and other trace gases that could be evidence about possible biological activity. Methane can be produced both biologically and without life. Besides the two spectrometers and the climate sounder, the orbiter's selected instruments include two NASA-provided imagers: a high-resolution, stereo, color imager, and a wide-angle, color, weather camera. The orbiter will also serve as a communications relay for missions on the surface of Mars and will carry a European-built descent-and-landing demonstration module designed to operate for a few days on the Mars surface. JPL, a division of the California Institute of Technology, manages NASA's roles in the mission. Jia-Rui C. Cook/Guy Webster 818-354-0850/354-6278 Jet Propulsion Laboratory, Pasadena, Calif. jia-rui.c.c...@jpl.nasa.gov/guy.webs...@jpl.nasa.gov 2010-280 __ Visit the Archives at
[meteorite-list] AD-ebay Dog Day Deals
Aloha, The Big Kahuna's regular weekly eBay auctions will end Saturday, August 28, starting at 8:58am Pacific / 11:58am Eastern / 4:58pm London / 6:58pm Helsinki / 11:58pm Singapore (http://shop.ebay.com/fujmon/m.html). A few of the 36 items up on the block this week: * Breja fall stone 194g complete individual At 3:00 am May 19, 2010 in the area of Breja, 35km north of Tindouf and east of Zag, many people witnessed a very bright bolide accompanied by a sonic boom and fragmentation event. These chondrites have very fresh, velvety black fusion crusts, with a light matrix with some metal inclusions visible through the crust, and very low magnetic susceptibility. Up for auction is a 194g complete individual of this fall, at a starting bid considerably lower than my initial offer. You don't see much of this material on the market ... except here! Bid now or Buy it Now. Just don't miss out on this opportunity to own one of he newest falls on earth! * NWA x possible rumurutiite 2.86g, 5.96g full slices A 155g stone was purchased from Morocco in July 2010, and appears visually to be an R-chondrite with well defined chondrules and exotic clasts set in a mustard brown matrix. All slices come in a quality labeled display box with COA, and once approved a new COA with label will be mailed at no extra cost. http://shop.ebay.com/fujmon/m.html Gary Fujihara Big Kahuna Meteorites (IMCA#1693) 105 Puhili Place, Hilo, Hawai'i 96720 http://bigkahuna-meteorites.com/ http://shop.ebay.com/fujmon/m.html (808) 640-9161 __ 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
Re: [meteorite-list] Holbrook Tektites ( HEAT TESTING of TEKTITES)
Hi Brian, Carl et. al. Thanks for the interesting info and things to ponder. It certainly is a subject I need to learn more about, and now I have some tests I can try on the glass at Holbrook. On another note, can anybody recommend a good, general book regarding the subject of tektites. Happy hunting, Mark B. Vail, AZ - Original Message From: BRIAN SCHROEDER br...@aajewel.com To: meteorite-list@meteoritecentral.com Sent: Fri, August 27, 2010 2:23:57 AM Subject: Re: [meteorite-list] Holbrook Tektites ( HEAT TESTING of TEKTITES) Greetings to Dennis, Mark and List Members HEAT TESTING OF TEKTITE Aubrey has some good interesting observations concerning Testing Tektites on his sight http://www.tektites.co.uk/tektite-tests.html Personally , I have access to professional Glass Blowers with tons of experience.. They work with Common , Borosilicate ( Pyrex ) and Dichroic Glasses. All types of Glass have different melting temperatures , and working together with the Top Production planner ( Brent ) who is versed in Heats and Flames required for melting these various types of glass, we set about to Heat Test Several Types of Tektite. Temperature is KEY to observations. Brent was aware of our goals and took time to test various temperatures as well as using test pieces and had far more information than I am able to convey simply. Lets just say that Coefficient of Expansion, Coloration and other physical properties were also in question during our tests. Glass melts at a relatively LOW Temperature, about 485 Centigrade / 900 Degrees Fahrenheit ( Varies with the amount and types of Alloys in the glass ) Bolorsilicate ( Pyrex ) at about 820 Centigrade / 1,510 Degrees Fahrenheit Thailandites, Philippinite , Moldavite and Quartz Glass melt at about 1,665 Centigrade / 3,029 Degrees Fahrenheit Libyan Desert Glass - we took it up to 1,815 Centigrade / 3,300 Degrees Fahrenheit and it was tacky on the surface , BUT did not Melt, as my friend stated it is laughing at us... We are still looking for a hotter Hydrogen Flame Unit to see what the actual melting point is. Darwin Glass - I have yet to test it, I forgot to bring samples. Maybe soon... 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. Glass and Borosilicate varies from Tektites , easily, by applying heat to samples of each set side by side, see what melts first .. Don't worry about destroying the Tektite , it will be safe since the glass will melt much sooner than any tektite, and if the Tektite melts at the same temperature as Glass ?? It was not a Tektite. Quartz Glass is rare and to find a piece while looking for Tektites is just to unlikely to ever happen. The reason Tektites can withstand such High Heat is that the impurities that allow Glass to melt at lower temperatures have been Burnt out of them already. MY THEORY: Thailandites, Philippinite and Darwin Glass have coloration from the residue left by these Burnt off elements. Heavily contaminated. Moldavite also gets its coloration from the Burnt off elements. Less Contamination Libyan Desert Glass is very clean and was intensely heated to remove even the residual left by burning off impurities. Minimal Contamination. Highest Regards to All Brian S. IMCA # 7381 http://stores.ebay.ca/AAJEWELCOM -- Date: Thu, 26 Aug 2010 13:15:36 -0400 From: cdtuc...@cox.net Subject: Re: [meteorite-list] Holbrook Tektites ( Magnet canes are evil) To: meteorite-list@meteoritecentral.com, Dennis Miller astror...@hotmail.com, Mark Bowling mina...@yahoo.com Dennis, Mark,List, Interesting you mention finding rocks that resemble certain tektites. You describe them as looking translucent and weathered with a tektite texture. Years ago I found what I thought was a strewnfield of tektites in Southern AZ. They too looked like what you found. I took them to ASU and Dr. Moore had his assistant attempt to melt one of them. He explained that a true tektite would simply melt like glass similar to the way a glass blower melts glass. If however it gets frothy and white it is not a tektite but likely natural obsidian glass. This had something to do with the amount of water. Apparently tektites are much dryer than obsidian. Well, they tested frothy and therefore deemed to be sand blasted obsidian. I believe he also said they are not magnetic. Some of mine were magnetic others were not. Curiously, I have since found that Surf-tumbled Sea glass has exactly the same appearance as these sand blasted obsidian orbs I found in the desert. The only difference is that sea glass does melt like tektites so, the melting test does not work on them. In fact other than the flanged buttons, to me many of the Tektites look more like Sea-glass than anything else. If you are unaware of it. Sea glass is largely a product of surf tumbled glass
Re: [meteorite-list] Holbrook Tektites ( Heat Testing of Tektites)
Bernd and all, 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 (?). Thanks for the info! Mark - Original Message From: bernd.pa...@paulinet.de bernd.pa...@paulinet.de To: Meteorite-list@meteoritecentral.com Sent: Fri, August 27, 2010 9:57:17 AM Subject: [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 __ 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] AD - SALE and FUNDRAISER
Hi to all, I hope everyone is doing well today. I have having a sale to raise funds for the museum, coming down to the line to get the building. It seems there is another party now interested in the location who wants to turn it into a fitness center (which we already have 4 of in Lenoir) That said, you want some good deals? Make reasonable offers on ebay listings for sale off ebay to avoid fees. There is some really nice material listed. http://stores.shop.ebay.com/wanderingstarmeteorites I have a nice amount of NWA 6291 micros for sale for $10 each also. Here are some pics of NWA stones I was given to help raise funds The weight is from left to right. I am asking for best offers on these. 411g and 632g http://i27.photobucket.com/albums/c165/jedisdiamond/411g632g.jpg 415g (very nice with massive fault that is fusion crusted inside the crack and not weathered. Kinda of looks like a rubble pile. http://i27.photobucket.com/albums/c165/jedisdiamond/415ga.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/415gb.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/415gc.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/415gd.jpg 540g and 684g http://i27.photobucket.com/albums/c165/jedisdiamond/540g684g.jpg 918g http://i27.photobucket.com/albums/c165/jedisdiamond/918g.jpg 8kg - AWESOME stone, shows just how deep these things can hit and sink into the ground. I kept this uncleaned, it shows the depth line still. http://i27.photobucket.com/albums/c165/jedisdiamond/8kgd.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/8kgc.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/8kgb.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/8kga.jpg I am also offering what I call the Charter Membership deal. For a one time fee of $100.00 you will get lifetime admission to the museum for any and all events. I will be having guest speakers and lectures as well as other events that will be additional to the normal admission, you get to attend those at no cost with the charter membership. I am up to $500.00 of the funds that are needed. You can see more about the museum here: http://meteoritemuseum.info/ Thanks for looking, I hope everyone has a great day. Greg Catterton www.wanderingstarmeteorites.com IMCA member 4682 On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites On Facebook: http://www.facebook.com/WanderingStarMeteorites __ 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] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980
Hi All, Here is a fascinating video graphically showing the exponential growth in discovered minor planets over the last 30 years. At the beginning of 1980, the count stood at 8954. It's now over half a million! http://www.youtube.com/watch?v=S_d-gs0WoUw In this time-lapse video, as new minor planets are discovered, they are highlighted in white. You'll notice that the majority of the discoveries follow the earth around in its orbit (since most discoveries are made at opposition). In the 1990s, the big surveys start to come online, and the discovery rates skyrocket. In 2010, a new pattern of discoveries starts to show up in a line perpendicular to the earth-sun line. This shows the dramatic increase in minor planet discoveries by WISE (the Widefield Infrared Survey Explorer), which only images near 90-degree elongation. The final color-coding of minor planets differentiates the NEOs from the mainbelters. Earth-crossing NEOs are colored red; earth-approaching NEOs (perihelion distance less than 1.3 a.u.) are in yellow; all others are green. Cheers, Rob __ 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
Re: [meteorite-list] AD - SALE and FUNDRAISER
Hi Greg and List, This is a great cause and I hope you get it off the ground. I really and truly wish I could help out financially, but I am just not able to do it. There has not been a museum dedicated wholly to meteorites in the US since Nininger's day and this museum that Greg is planning would be a great boon to the hobby of collecting meteorites and possibly to meteoritics as well - if the museum inspires young minds to take up science for a career. Those of you who are reading this, who are in a financial position to help out, please support Greg with this project. If this museum succeeds, it will be of benefit to the entire meteorite community. I will offer this small bit of help - all people who donate at least $100 worth of specimens (or money) to the museum project will receive a lifetime 30% discount on everything and anything in my store inventory. To qualify, simply help Greg out and then contact me. I will confirm your donor status and then create a special coupon code just for you to use at checkout. This is a bigger discount than my mailing-list members and friends receive. Greg has generously donated his time and money to this project - which is a significant thing because Greg is a family man with children, and time/money are two things that are at a premium for those who are raising a family. If this project fails to get off the ground, then we cannot blame Greg - we can only blame ourselves. Best regards, MikeG Mike Gilmer - Galactic Stone Ironworks Meteorites http://www.galactic-stone.com http://www.facebook.com/galacticstone On 8/27/10, Greg Catterton star_wars_collec...@yahoo.com wrote: Hi to all, I hope everyone is doing well today. I have having a sale to raise funds for the museum, coming down to the line to get the building. It seems there is another party now interested in the location who wants to turn it into a fitness center (which we already have 4 of in Lenoir) That said, you want some good deals? Make reasonable offers on ebay listings for sale off ebay to avoid fees. There is some really nice material listed. http://stores.shop.ebay.com/wanderingstarmeteorites I have a nice amount of NWA 6291 micros for sale for $10 each also. Here are some pics of NWA stones I was given to help raise funds The weight is from left to right. I am asking for best offers on these. 411g and 632g http://i27.photobucket.com/albums/c165/jedisdiamond/411g632g.jpg 415g (very nice with massive fault that is fusion crusted inside the crack and not weathered. Kinda of looks like a rubble pile. http://i27.photobucket.com/albums/c165/jedisdiamond/415ga.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/415gb.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/415gc.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/415gd.jpg 540g and 684g http://i27.photobucket.com/albums/c165/jedisdiamond/540g684g.jpg 918g http://i27.photobucket.com/albums/c165/jedisdiamond/918g.jpg 8kg - AWESOME stone, shows just how deep these things can hit and sink into the ground. I kept this uncleaned, it shows the depth line still. http://i27.photobucket.com/albums/c165/jedisdiamond/8kgd.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/8kgc.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/8kgb.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/8kga.jpg I am also offering what I call the Charter Membership deal. For a one time fee of $100.00 you will get lifetime admission to the museum for any and all events. I will be having guest speakers and lectures as well as other events that will be additional to the normal admission, you get to attend those at no cost with the charter membership. I am up to $500.00 of the funds that are needed. You can see more about the museum here: http://meteoritemuseum.info/ Thanks for looking, I hope everyone has a great day. Greg Catterton www.wanderingstarmeteorites.com IMCA member 4682 On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites On Facebook: http://www.facebook.com/WanderingStarMeteorites __ 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 -- Mike Gilmer - Galactic Stone Ironworks Meteorites http://www.galactic-stone.com http://www.facebook.com/galacticstone __ 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
Re: [meteorite-list] AD - SALE and FUNDRAISER
You know, the meteorite museum idea is a phenomenally wonderful philanthropic gesture and contribution to the meteorite community. I've spoken with Greg at length about it, and he's very excited. He's also a realist. He knows it could fail easily, but he's willing to take the risk. I've heard some rather negative remarks about the museum from some but still I think it's a good idea, if done right. Can you think of a better idea, or why this shouldn't or couldn't be done? Here's what I see. IF it takes off in the small town, it would most probably work in a larger city. IF it survives the first year in the small town, it could easily be moved to a slightly more populated area. Year 2 or 3 could see the museum moved to a larger city like nearby Charlotte Charlotte is a larger city who's population could easily support a meteorite museum As the success continues to build over time, more institutions and private collectors could help support this museum network by donating the funding needed and loaning meteorites to the museum(s) for display and study. The museum could be also be expanded and supported in part by locating it near Universities in other larger cities throughout the USA. Universities could have a meteorite study programs alongside any astronomy related education currently part of their curriculum Cooperation and participation by Universities and collectors could create a foundation upon which an entire meteorite museum network could be founded. The opportunity for growth and outreach to communities and students of astronomy related studies and meteoritics is phenomenal Keep in mind, if he can make it work in this economy, in a small town, with very little funding, it could be the catalyst from something much grander and more educationally fulfilling than anyone could imagine. But it will take the efforts of many people working together to make it happen. Meteorites for display/loan to the museum could come from any number of sources. There are literally tens of thousands of meteorites in institutional and private collection that could be loaned or donated to the museum. More than enough to fill 50 small meteorite museums in 50 capitol cities! Placing the museums close to Universities would help alleviate some fears of lost material, which at the same time allowing much of the material that's currently locked away in specimen drawers to the viewed and enjoyed by the public thereby creating one of the largest meteorite outreach programs in the history of meteorites. What better way to do that than with a meteorite museum that if successful could reach millions of people in every capital city in every state of our great union. The potential for education, and propagation of knowledge of meteoritics would be unmatched. What better name for such a museum, than one being named after our beloved and much respected Norton and Nininger. There's a risk sure, but the reward far outweighs any risk of loss, funding, or lack of interest. If this fails, it's not because Greg didn't try... I believe in the idea of a meteorite museum, and support it 110%. Regards, Eric On 8/27/2010 10:48 AM, Galactic Stone Ironworks wrote: Hi Greg and List, This is a great cause and I hope you get it off the ground. I really and truly wish I could help out financially, but I am just not able to do it. There has not been a museum dedicated wholly to meteorites in the US since Nininger's day and this museum that Greg is planning would be a great boon to the hobby of collecting meteorites and possibly to meteoritics as well - if the museum inspires young minds to take up science for a career. Those of you who are reading this, who are in a financial position to help out, please support Greg with this project. If this museum succeeds, it will be of benefit to the entire meteorite community. I will offer this small bit of help - all people who donate at least $100 worth of specimens (or money) to the museum project will receive a lifetime 30% discount on everything and anything in my store inventory. To qualify, simply help Greg out and then contact me. I will confirm your donor status and then create a special coupon code just for you to use at checkout. This is a bigger discount than my mailing-list members and friends receive. Greg has generously donated his time and money to this project - which is a significant thing because Greg is a family man with children, and time/money are two things that are at a premium for those who are raising a family. If this project fails to get off the ground, then we cannot blame Greg - we can only blame ourselves. Best regards, MikeG Mike Gilmer - Galactic Stone Ironworks Meteorites http://www.galactic-stone.com http://www.facebook.com/galacticstone On 8/27/10, Greg Cattertonstar_wars_collec...@yahoo.com
[meteorite-list] 8 trim saw blade recommendation
Hi All, I need to replace the 8 diamond saw blade on my Lortone trim saw. Unfortunately, it appears that the blade I was using (MK 1000 Saber model 3-0094) is no longer manufactured, so I need to find a good replacement. Does anyone have any recommendations for a thin 8 blade suitable for cutting chondrites/achondrites (not irons)? There are more choices out there now so I'm not up on the latest news as far as which blades are superior with meteorites (and the occasional meteorwrong or geode) but also last a long time. In the past I've purchased from Kingsley North: http://www.kingsleynorth.com/skshop/search_results2.php?catID=113keys=; start=0count=8 Blades that I'm considering are: Pro-slicer 3-0156 8 x .012 core x .016 rim x 5/8 arbor MK/BD-303 3-0171 8 x .025 x 5/8 x 1/2 arbor Yellow Blazer 3-0006 8 x .023 core x .031 rim x 5/8 x 1/2 arbor I'm leaning toward the Pro-slicer blade, primarily because the thin kerf (.016) is close to that of my current blade. I recall others on the List have mentioned using Pro-slicer blades. Are there others I should be considering? Thanks! --Rob __ 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
Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980
Wow! Wow! WOW! It really is a cosmic soup out there. It's so fluid, and reactive. All I can think is. Look at all the future meteorites! ;) Unless of course one destroys our planet first. The red ones are scary... ;) Eric On 8/27/2010 10:34 AM, Matson, Robert D. wrote: Hi All, Here is a fascinating video graphically showing the exponential growth in discovered minor planets over the last 30 years. At the beginning of 1980, the count stood at 8954. It's now over half a million! http://www.youtube.com/watch?v=S_d-gs0WoUw In this time-lapse video, as new minor planets are discovered, they are highlighted in white. You'll notice that the majority of the discoveries follow the earth around in its orbit (since most discoveries are made at opposition). In the 1990s, the big surveys start to come online, and the discovery rates skyrocket. In 2010, a new pattern of discoveries starts to show up in a line perpendicular to the earth-sun line. This shows the dramatic increase in minor planet discoveries by WISE (the Widefield Infrared Survey Explorer), which only images near 90-degree elongation. The final color-coding of minor planets differentiates the NEOs from the mainbelters. Earth-crossing NEOs are colored red; earth-approaching NEOs (perihelion distance less than 1.3 a.u.) are in yellow; all others are green. Cheers, Rob __ 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 __ 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
Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980
Hello Rob, Thanks for the very interesting link. I always enjoy your posts to The List. Please keep 'em coming! Best wishes, Robert Woolard --- On Fri, 8/27/10, Matson, Robert D. robert.d.mat...@saic.com wrote: From: Matson, Robert D. robert.d.mat...@saic.com Subject: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980 To: Meteorite Central meteorite-list@meteoritecentral.com Date: Friday, August 27, 2010, 12:34 PM Hi All, Here is a fascinating video graphically showing the exponential growth in discovered minor planets over the last 30 years. At the beginning of 1980, the count stood at 8954. It's now over half a million! http://www.youtube.com/watch?v=S_d-gs0WoUw In this time-lapse video, as new minor planets are discovered, they are highlighted in white. You'll notice that the majority of the discoveries follow the earth around in its orbit (since most discoveries are made at opposition). In the 1990s, the big surveys start to come online, and the discovery rates skyrocket. In 2010, a new pattern of discoveries starts to show up in a line perpendicular to the earth-sun line. This shows the dramatic increase in minor planet discoveries by WISE (the Widefield Infrared Survey Explorer), which only images near 90-degree elongation. The final color-coding of minor planets differentiates the NEOs from the mainbelters. Earth-crossing NEOs are colored red; earth-approaching NEOs (perihelion distance less than 1.3 a.u.) are in yellow; all others are green. Cheers, Rob __ 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 __ 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] AD meteorites for sale August 27th, 2010
Here are more offerings from the Fredric Stephan collection: El Hammami Mauritania 3.61 g Davy (a)Texas2.75 g NWA 3143 Morocco 5.01 g NWA 4565 Morocco 5.21 g Tulia (b) Texas 2.01 g Monze Zambia 44.81 g Pultusk Poland 13.71g Pultusk Poland 56.51 g Sardis Georgia 2.75 g TwodotMontana 5.3 g St.GenevieveMissouri 17.0 g Etter Texas 81.6 g Edmonson (b)Texas 11.4 g Numerous others available: some historic, rare and unusual museum quality pieces For more information please e-mail Twink Monrad off-list larrytwinkmon...@comcast.net __ 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 Odyssey THEMIS Images: August 23-27, 2010
MARS ODYSSEY THEMIS IMAGES August 23-27, 2010 o Arsia Mons (23 August 2010) http://themis.asu.edu/zoom-20100823a o Zephyria Planum (24 August 2010) http://themis.asu.edu/zoom-20100824a o Utopia Planitia (25 August 2010) http://themis.asu.edu/zoom-20100825a o Channel (26 August 2010) http://themis.asu.edu/zoom-20100826a o Tempe Terra (27 August 2010) http://themis.asu.edu/zoom-20100827a All of the THEMIS images are archived here: http://themis.asu.edu/latest.html NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in co.oration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena. __ 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 Meteorite Strike Caused Dinosaur Extinction?
http://www.bbc.co.uk/news/science-environment-2417 Double meteorite strike 'caused dinosaur extinction' By Howard Falcon-Lang BBC News August 27, 2010 The dinosaurs were wiped out 65 million years ago by at least two meteorite impacts, rather than a single strike, a new study suggests. Previously, scientists had identified a huge impact crater in the Gulf of Mexico as the event that spelled doom for the dinosaurs. Now evidence for a second impact in the Ukraine has been uncovered. This raises the possibility that the Earth may have been bombarded by a whole shower of meteorites. The new findings are published in the journal Geology by a team lead by Professor David Jolley of Aberdeen University. When first proposed in 1980, the idea that a meteorite impact had killed the dinosaurs proved hugely controversial. Later, the discovery of the Chicxulub Crater in the Gulf of Mexico, US, was hailed as the smoking gun that confirmed the theory. Double trouble The discovery of a second impact crater suggests that the dinosaurs were driven to extinction by a double whammy rather than a single strike. The Boltysh Crater in the Ukraine was first reported in 2002. However, until now it was uncertain exactly how the timing of this event related to the Chicxulub impact. In the current study, scientists examined the pollen and spores of fossil plants in the layers of mud that infilled the crater. They found that immediately after the impact, ferns quickly colonised the devastated landscape. Ferns have an amazing ability to bounce back after catastrophe. Layers full of fern spores - dubbed fern spikes - are considered to be a good markers of past impact events. However, there was an unexpected discovery in store for the scientists. They located a second fern spike in a layer one metre above the first, suggesting another later impact event. Professor Simon Kelley of the Open University, who was co-author on the study, said We interpret this second layer as the aftermath of the Chicxulub impact. This shows that the Boltysh and Chicxulub impacts did not happen at exactly the same time. They struck several thousand years apart, the length of time between the two fern spikes. Uncertain cause Professor Kelley continued: It is quite possible that in the future we will find evidence for more impact events. Rather than being wiped out by a single hit, the researchers think that dinosaurs may have fallen victim to a meteorite shower raining down over thousands of years. What might have caused this bombardment is highly uncertain. Professor Monica Grady, a meteorite expert at the Open University who was not involved in the current study, said One possibility might be the collison of Near Earth Objects. Recently, Nasa launched a program dubbed Spaceguard. It aims to monitor such Near Earth Objects as an early warning system of possible future collisons. __ 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 Museum-Good luck, Greg!
Hey Greg, Hope you have a lot of knowledgable help in the museum. Family help would be better only because it would be cheaper but you still need people that know meteorites. Potential for burn out is very high for something like this if you do everything yourself. Good luck and take care!! Carl2 Eric wrote: ...IF it takes off in the small town, it would most probably work in a larger city. IF it survives the first year in the small town, it could easily be moved to a slightly more populated area. Year 2 or 3 could see the museum moved... __ 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
Re: [meteorite-list] 8 trim saw blade recommendation
Hi Rob, I use Dialaser blades by Lapcraft. I've had very good luck with them. Very thin and they hold up well. Lapcraft also makes some other sintered blades that I've been meaning to try out, but haven't had a chance yet. http://www.lapcraft.com/lcat13.htm Let us know what you go with and how well it works. My current blade is about half-way worn out, so I'm going to be in the market for a new one before too long. I've been wanting to try a sintered blade. Best regards, MikeG On 8/27/10, Matson, Robert D. robert.d.mat...@saic.com wrote: Hi All, I need to replace the 8 diamond saw blade on my Lortone trim saw. Unfortunately, it appears that the blade I was using (MK 1000 Saber model 3-0094) is no longer manufactured, so I need to find a good replacement. Does anyone have any recommendations for a thin 8 blade suitable for cutting chondrites/achondrites (not irons)? There are more choices out there now so I'm not up on the latest news as far as which blades are superior with meteorites (and the occasional meteorwrong or geode) but also last a long time. In the past I've purchased from Kingsley North: http://www.kingsleynorth.com/skshop/search_results2.php?catID=113keys=; start=0count=8 Blades that I'm considering are: Pro-slicer 3-0156 8 x .012 core x .016 rim x 5/8 arbor MK/BD-303 3-0171 8 x .025 x 5/8 x 1/2 arbor Yellow Blazer 3-0006 8 x .023 core x .031 rim x 5/8 x 1/2 arbor I'm leaning toward the Pro-slicer blade, primarily because the thin kerf (.016) is close to that of my current blade. I recall others on the List have mentioned using Pro-slicer blades. Are there others I should be considering? Thanks! --Rob __ 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 -- Mike Gilmer - Galactic Stone Ironworks Meteorites http://www.galactic-stone.com http://www.facebook.com/galacticstone __ 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
Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980
Eric, List, Unless of course one destroys our planet first... The largest NEO is 1036 Ganymed. The Largest Near-Earth Object is 32 km in diameter. The second largest is 433 Eros (visited by NEAR); it's 33 km by 13 km. Even the 20 mile Ganymed wouldn't destroy the planet. Just a little dent about twice the size of Chicxulub... Might be tough on like, you know, living things, though... No, if you want to destroy the Earth (whatever that means to you), you need a bigger hammer. I suggest 2060 Chiron, whose orbit between Saturn and Uranus is not long-term stable. How big is it? In 1984, Larry Lebofsky derived a diameter of 180 km or 112 miles. In 1991, IRAS determined it had to be less than 372 km. In 1994, Campins determined 150 km. in 1996, an occultation yielded a value of 180 km. And In 2007, the Spitzer Space Telescope said it was 235 km in diameter. Personally, I'll go with Larry. If eventually, old Saturn persuades Chiron to fall into the inner solar system and it should meet up with Earth with the 40 to 50 km/sec velocity such an elliptical orbit implies, it would be one helluva whack. Wouldn't destroy the Earth either. It would change the Earth a lot. The interesting question is: what would replace us Mammals? Sterling K. Webb -- - Original Message - From: Meteorites USA e...@meteoritesusa.com To: meteorite-list@meteoritecentral.com Sent: Friday, August 27, 2010 1:54 PM Subject: Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980 Wow! Wow! WOW! It really is a cosmic soup out there. It's so fluid, and reactive. All I can think is. Look at all the future meteorites! ;) Unless of course one destroys our planet first. The red ones are scary... ;) Eric On 8/27/2010 10:34 AM, Matson, Robert D. wrote: Hi All, Here is a fascinating video graphically showing the exponential growth in discovered minor planets over the last 30 years. At the beginning of 1980, the count stood at 8954. It's now over half a million! http://www.youtube.com/watch?v=S_d-gs0WoUw In this time-lapse video, as new minor planets are discovered, they are highlighted in white. You'll notice that the majority of the discoveries follow the earth around in its orbit (since most discoveries are made at opposition). In the 1990s, the big surveys start to come online, and the discovery rates skyrocket. In 2010, a new pattern of discoveries starts to show up in a line perpendicular to the earth-sun line. This shows the dramatic increase in minor planet discoveries by WISE (the Widefield Infrared Survey Explorer), which only images near 90-degree elongation. The final color-coding of minor planets differentiates the NEOs from the mainbelters. Earth-crossing NEOs are colored red; earth-approaching NEOs (perihelion distance less than 1.3 a.u.) are in yellow; all others are green. Cheers, Rob __ 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 __ 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 __ 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
Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980
Wouldn't destroy the Earth either. It would change the Earth a lot. The interesting question is: what would replace us Mammals? Meteorites would replace us. ;) On 8/27/10, Sterling K. Webb sterling_k_w...@sbcglobal.net wrote: Eric, List, Unless of course one destroys our planet first... The largest NEO is 1036 Ganymed. The Largest Near-Earth Object is 32 km in diameter. The second largest is 433 Eros (visited by NEAR); it's 33 km by 13 km. Even the 20 mile Ganymed wouldn't destroy the planet. Just a little dent about twice the size of Chicxulub... Might be tough on like, you know, living things, though... No, if you want to destroy the Earth (whatever that means to you), you need a bigger hammer. I suggest 2060 Chiron, whose orbit between Saturn and Uranus is not long-term stable. How big is it? In 1984, Larry Lebofsky derived a diameter of 180 km or 112 miles. In 1991, IRAS determined it had to be less than 372 km. In 1994, Campins determined 150 km. in 1996, an occultation yielded a value of 180 km. And In 2007, the Spitzer Space Telescope said it was 235 km in diameter. Personally, I'll go with Larry. If eventually, old Saturn persuades Chiron to fall into the inner solar system and it should meet up with Earth with the 40 to 50 km/sec velocity such an elliptical orbit implies, it would be one helluva whack. Wouldn't destroy the Earth either. It would change the Earth a lot. The interesting question is: what would replace us Mammals? Sterling K. Webb -- - Original Message - From: Meteorites USA e...@meteoritesusa.com To: meteorite-list@meteoritecentral.com Sent: Friday, August 27, 2010 1:54 PM Subject: Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980 Wow! Wow! WOW! It really is a cosmic soup out there. It's so fluid, and reactive. All I can think is. Look at all the future meteorites! ;) Unless of course one destroys our planet first. The red ones are scary... ;) Eric On 8/27/2010 10:34 AM, Matson, Robert D. wrote: Hi All, Here is a fascinating video graphically showing the exponential growth in discovered minor planets over the last 30 years. At the beginning of 1980, the count stood at 8954. It's now over half a million! http://www.youtube.com/watch?v=S_d-gs0WoUw In this time-lapse video, as new minor planets are discovered, they are highlighted in white. You'll notice that the majority of the discoveries follow the earth around in its orbit (since most discoveries are made at opposition). In the 1990s, the big surveys start to come online, and the discovery rates skyrocket. In 2010, a new pattern of discoveries starts to show up in a line perpendicular to the earth-sun line. This shows the dramatic increase in minor planet discoveries by WISE (the Widefield Infrared Survey Explorer), which only images near 90-degree elongation. The final color-coding of minor planets differentiates the NEOs from the mainbelters. Earth-crossing NEOs are colored red; earth-approaching NEOs (perihelion distance less than 1.3 a.u.) are in yellow; all others are green. Cheers, Rob __ 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 __ 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 __ 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 -- Mike Gilmer - Galactic Stone Ironworks Meteorites http://www.galactic-stone.com http://www.facebook.com/galacticstone __ 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
Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980
Interesting Sterling... As always. I always love reading your posts. Perhaps I should have said destroy life instead. An impact on the scale you pointed out would be an extinction event which humans may or may not have the technology to survive. Perhaps we should start building underground cities, or Generation Ships. The only problem then would be figuring our who gets tickets. ;) Regards, Eric On 8/27/2010 2:23 PM, Sterling K. Webb wrote: Eric, List, Unless of course one destroys our planet first... The largest NEO is 1036 Ganymed. The Largest Near-Earth Object is 32 km in diameter. The second largest is 433 Eros (visited by NEAR); it's 33 km by 13 km. Even the 20 mile Ganymed wouldn't destroy the planet. Just a little dent about twice the size of Chicxulub... Might be tough on like, you know, living things, though... No, if you want to destroy the Earth (whatever that means to you), you need a bigger hammer. I suggest 2060 Chiron, whose orbit between Saturn and Uranus is not long-term stable. How big is it? In 1984, Larry Lebofsky derived a diameter of 180 km or 112 miles. In 1991, IRAS determined it had to be less than 372 km. In 1994, Campins determined 150 km. in 1996, an occultation yielded a value of 180 km. And In 2007, the Spitzer Space Telescope said it was 235 km in diameter. Personally, I'll go with Larry. If eventually, old Saturn persuades Chiron to fall into the inner solar system and it should meet up with Earth with the 40 to 50 km/sec velocity such an elliptical orbit implies, it would be one helluva whack. Wouldn't destroy the Earth either. It would change the Earth a lot. The interesting question is: what would replace us Mammals? Sterling K. Webb -- - Original Message - From: Meteorites USA e...@meteoritesusa.com To: meteorite-list@meteoritecentral.com Sent: Friday, August 27, 2010 1:54 PM Subject: Re: [meteorite-list] Beautiful time-lapse movie showing the growth in discovered minor planets since 1980 Wow! Wow! WOW! It really is a cosmic soup out there. It's so fluid, and reactive. All I can think is. Look at all the future meteorites! ;) Unless of course one destroys our planet first. The red ones are scary... ;) Eric On 8/27/2010 10:34 AM, Matson, Robert D. wrote: Hi All, Here is a fascinating video graphically showing the exponential growth in discovered minor planets over the last 30 years. At the beginning of 1980, the count stood at 8954. It's now over half a million! http://www.youtube.com/watch?v=S_d-gs0WoUw In this time-lapse video, as new minor planets are discovered, they are highlighted in white. You'll notice that the majority of the discoveries follow the earth around in its orbit (since most discoveries are made at opposition). In the 1990s, the big surveys start to come online, and the discovery rates skyrocket. In 2010, a new pattern of discoveries starts to show up in a line perpendicular to the earth-sun line. This shows the dramatic increase in minor planet discoveries by WISE (the Widefield Infrared Survey Explorer), which only images near 90-degree elongation. The final color-coding of minor planets differentiates the NEOs from the mainbelters. Earth-crossing NEOs are colored red; earth-approaching NEOs (perihelion distance less than 1.3 a.u.) are in yellow; all others are green. Cheers, Rob __ 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 __ 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 __ 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 Meteorites Analysis
Hi List, Can someone tell me if the Mars meteorites (not Martian meteorites on Earth) which were discovered on Mars by Opportunity Rover were analyzed beyond the Mössbauer and alpha particle X-ray spectrometers which is recorded on NASA here: http://marsrover.nasa.gov/newsroom/pressreleases/20050119a.html Also, have there been ANY other meteorites found on Mars, or the Moon, or any other small body we've placed humans or machines on? Eric __ 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] Ad : Irons
Hi All , i ve got some nice Irons for sale , if interested contact me offlist. Regards M.Youssef __ 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
Re: [meteorite-list] AD Campo Del Cielo My first sell hopefully ^^
Just wanted to let everyone know that my auction is ending in 22hrs http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=170531516314ssPageName=STRK:MESELX:IT Jesse ^^ On Sat, Aug 21, 2010 at 10:39 AM, Jesse Piper lunacyg...@gmail.com wrote: Well The other day I bought a Campo Del Cielo and sent some pics to Gary Fujihara and he said indeed it was a Campo. Well I would like to try and make my first sale here but then again I'm not sure what i should sell it for so I guess just send me offers on it. I will say there is some small rust in one crack and I'm not to sure the steps to clean it and I really don't want to mess it up. Its 951.4/g And is not coated with anything. Not sure if this is against the terms for the list but here is pictures of it. http://www.facebook.com/photo.php?pid=6221685l=fc4a1f4ad2id=612353652 http://www.facebook.com/photo.php?pid=6221699l=476067886eid=612353652 If you need anymore info or pictures just send me a message. Also I don't have a scale cube yet so if anyone thinks I should retake the pictures with something let me know. Thanks so much Jesse Piper __ 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
Re: [meteorite-list] AD - SALE and FUNDRAISER
Hi Eric, Good luck with your effort. One question comes to mind. Will there be insurance for both the permanent collection, as well as loaned, or visiting collections? Loss due to theft could be a major concern, it only has to happen once. Mike Fowler Chicago PS My business was burglarized last week, so the experience is fresh in my mind. You know, the meteorite museum idea is a phenomenally wonderful philanthropic gesture and contribution to the meteorite community. I've spoken with Greg at length about it, and he's very excited. He's also a realist. He knows it could fail easily, but he's willing to take the risk. I've heard some rather negative remarks about the museum from some but still I think it's a good idea, if done right. Can you think of a better idea, or why this shouldn't or couldn't be done? Here's what I see. IF it takes off in the small town, it would most probably work in a larger city. IF it survives the first year in the small town, it could easily be moved to a slightly more populated area. Year 2 or 3 could see the museum moved to a larger city like nearby Charlotte Charlotte is a larger city who's population could easily support a meteorite museum As the success continues to build over time, more institutions and private collectors could help support this museum network by donating the funding needed and loaning meteorites to the museum(s) for display and study. The museum could be also be expanded and supported in part by locating it near Universities in other larger cities throughout the USA. Universities could have a meteorite study programs alongside any astronomy related education currently part of their curriculum Cooperation and participation by Universities and collectors could create a foundation upon which an entire meteorite museum network could be founded. The opportunity for growth and outreach to communities and students of astronomy related studies and meteoritics is phenomenal Keep in mind, if he can make it work in this economy, in a small town, with very little funding, it could be the catalyst from something much grander and more educationally fulfilling than anyone could imagine. But it will take the efforts of many people working together to make it happen. Meteorites for display/loan to the museum could come from any number of sources. There are literally tens of thousands of meteorites in institutional and private collection that could be loaned or donated to the museum. More than enough to fill 50 small meteorite museums in 50 capitol cities! Placing the museums close to Universities would help alleviate some fears of lost material, which at the same time allowing much of the material that's currently locked away in specimen drawers to the viewed and enjoyed by the public thereby creating one of the largest meteorite outreach programs in the history of meteorites. What better way to do that than with a meteorite museum that if successful could reach millions of people in every capital city in every state of our great union. The potential for education, and propagation of knowledge of meteoritics would be unmatched. What better name for such a museum, than one being named after our beloved and much respected Norton and Nininger. There's a risk sure, but the reward far outweighs any risk of loss, funding, or lack of interest. If this fails, it's not because Greg didn't try... I believe in the idea of a meteorite museum, and support it 110%. Regards, Eric __ 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
Re: [meteorite-list] AD - SALE and FUNDRAISER
Hi, yes I am having full insurance, 1 million to be specific at a rate of $1,100 per year. Any samples in the museum will be covered under it as well as people inside. There will be security system and also recording equipment. Greg Sent on the Sprint® Now Network from my BlackBerry® -Original Message- From: Michael Fowler mqfow...@mac.com Sender: meteorite-list-boun...@meteoritecentral.com Date: Fri, 27 Aug 2010 18:49:07 To: meteorite-list@meteoritecentral.com Cc: Michael Fowlermqfow...@mac.com Subject: Re: [meteorite-list] AD - SALE and FUNDRAISER Hi Eric, Good luck with your effort. One question comes to mind. Will there be insurance for both the permanent collection, as well as loaned, or visiting collections? Loss due to theft could be a major concern, it only has to happen once. Mike Fowler Chicago PS My business was burglarized last week, so the experience is fresh in my mind. You know, the meteorite museum idea is a phenomenally wonderful philanthropic gesture and contribution to the meteorite community. I've spoken with Greg at length about it, and he's very excited. He's also a realist. He knows it could fail easily, but he's willing to take the risk. I've heard some rather negative remarks about the museum from some but still I think it's a good idea, if done right. Can you think of a better idea, or why this shouldn't or couldn't be done? Here's what I see. IF it takes off in the small town, it would most probably work in a larger city. IF it survives the first year in the small town, it could easily be moved to a slightly more populated area. Year 2 or 3 could see the museum moved to a larger city like nearby Charlotte Charlotte is a larger city who's population could easily support a meteorite museum As the success continues to build over time, more institutions and private collectors could help support this museum network by donating the funding needed and loaning meteorites to the museum(s) for display and study. The museum could be also be expanded and supported in part by locating it near Universities in other larger cities throughout the USA. Universities could have a meteorite study programs alongside any astronomy related education currently part of their curriculum Cooperation and participation by Universities and collectors could create a foundation upon which an entire meteorite museum network could be founded. The opportunity for growth and outreach to communities and students of astronomy related studies and meteoritics is phenomenal Keep in mind, if he can make it work in this economy, in a small town, with very little funding, it could be the catalyst from something much grander and more educationally fulfilling than anyone could imagine. But it will take the efforts of many people working together to make it happen. Meteorites for display/loan to the museum could come from any number of sources. There are literally tens of thousands of meteorites in institutional and private collection that could be loaned or donated to the museum. More than enough to fill 50 small meteorite museums in 50 capitol cities! Placing the museums close to Universities would help alleviate some fears of lost material, which at the same time allowing much of the material that's currently locked away in specimen drawers to the viewed and enjoyed by the public thereby creating one of the largest meteorite outreach programs in the history of meteorites. What better way to do that than with a meteorite museum that if successful could reach millions of people in every capital city in every state of our great union. The potential for education, and propagation of knowledge of meteoritics would be unmatched. What better name for such a museum, than one being named after our beloved and much respected Norton and Nininger. There's a risk sure, but the reward far outweighs any risk of loss, funding, or lack of interest. If this fails, it's not because Greg didn't try... I believe in the idea of a meteorite museum, and support it 110%. Regards, Eric __ 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 __ 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 Deal Texas
On behalf of the Discoverer And for your viewing pleasure: http://www.kcbd.com/global/story.asp?s=13057309 Anne M. Black http://www.impactika.com/ impact...@aol.com Vice-President, I.M.C.A. Inc. http://www.imca.cc/ __ 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
Re: [meteorite-list] Holbrook Tektites ( HEAT TESTING of TEKTITES)
Brian, Tom, List, Libyan Desert glass is 98% pure silica, the purest naturally discovered glass on Earth. http://www.pisces-press.com/C-Nav/ldg.htm While one sees as examples are clear, gem-like LDG, many of the fragments found on the ground (and tossed aside as dirty or not pretty enough) are tabular and layered, clean, dirty, clean, dirty, like the Muong-Nong tektites found in Laos and Thailand. Boslough at Sandia has a airburst theory... naturally: http://www.sandia.gov/news/publications/technology/2006/0804/glass.html Most people think an impact origin. Too many references to cite. There are some completely dopey theories about LDG, too. I found this one to be worth a good laugh: http://www.b14643.de/Sahara/LDG/index.htm And there are some people still think tektites are volcanic: http://www.rasc.ca/journal/pdfs/2004-10.pdf Analysis of LDG can be found in Christian Koeberl, A Meteorite Component in LDG. He finds excess cobalt, nickel, iridium: http://www.lpi.usra.edu/meetings/metsoc2000/pdf/5253.pdf Here's the actual earlier work by Koeberl, the full paper, with complete data: http://www.univie.ac.at/geochemistry/koeberl/publikation_list/132-Libyan-Desert-Glass-Proc-Bologna-Mtg-1997.pdf Anyone have an idea why there's a ten-fold excess of uranium in LDG? I'm sure that's spawned a few whacko websites! I quote from Koeberl ...none of the sands or sandstones ...are good candidates to be the sole precursors of LDG. Formation temperature has to be high enough to melt zircons, as they contain melted zircons (as many tektites do). Ever tried to melt a natural zircon? What is often missing from the discussions of the origins of the LDG is the fact that the Libyian-Egyptian Desert pf 28.5 million years ago was NOT a desert. It was swamps, vast lakes, bogs, and snaking bayous. What was not open water was wet and very densely forested between 24 and 32 million years ago. The Sahara to the west and south was grasslands and scattered forest. Yeah, I know. Doesn't look it, does it? But in the Oligocene Epoch it was more like the Amazon Basin on a smaller, dryer scale. It's a rich source (only source, actually) of fossils of early primate ancestors of apes and men. It seems to be where we learned to hang out in trees (literally), the black anaerobic crap underneath being something you didn't want to fall into. These wet basins were filled with hundreds of feet of sand blown in from the west as the Sahara began to dry out. This is the target geography that an impactor would have struck. The high silica content pretty much has to mean that LDG was made entirely from sand. The fact that LDG is not as dry as most tektites may come from the fact that the target soils were underwater some depth. Merely geusses, though. Is there a good book on tektites? No. The study of tektites drives people crazy, and crazy people do not write good books... O'Keefe's 1976 Tektites and Their Origins book was posted online for years but it's gone now. You can get a copy on Amazon for $200. (O'Keefe was the O of the YORP Effect or Yarkovsky-O'Keefe-Radzievskii-Paddock Effect). Other books by Heinan and Provenmire are hard to find. Now that I think of it... All books on tektites are hard to find Sterling K. Webb - - Original Message - From: starsinthed...@aol.com To: meteorite-list@meteoritecentral.com Sent: Friday, August 27, 2010 10:20 AM Subject: Re: [meteorite-list] Holbrook Tektites ( HEAT TESTING of TEKTITES) Very well done Brian! Thanks for sharing your results. Your experience with the LDG, Libyan Desert Glass - we took it up to 1,815 Centigrade / 3,300 Degrees Fahrenheit and it was tacky on the surface , BUT did not Melt This made me wonder again what others think of the idea that LDG is a glass meteorite and not a glass created in the same manor as most tektites. This is not original thinking on my part as I have heard it proposed as one of the theories on LDG. Any thought on this? Some samples of LDG are shaped more like a meteorite than a tektite aside from the fact that they are glass! Tom In a message dated 8/27/2010 3:24:13 A.M. Mountain Daylight Time, br...@aajewel.com writes: Greetings to Dennis, Mark and List Members HEAT TESTING OF TEKTITE Aubrey has some good interesting observations concerning Testing Tektites on his sight http://www.tektites.co.uk/tektite-tests.html Personally , I have access to professional Glass Blowers with tons of experience.. They work with Common , Borosilicate ( Pyrex ) and Dichroic Glasses. All types of Glass have different melting temperatures , and working together with the Top Production planner ( Brent ) who is versed in Heats and Flames required for melting these various types of glass, we set about to Heat Test Several Types of Tektite. Temperature is KEY to observations. Brent was aware of our goals and took time to test various
Re: [meteorite-list] Holbrook Tektites ( HEAT TESTING of TEKTITES)
Hello Sterling, Brian S., etc. You wrote (in part) ... Is there a good book on tektites? No. The study of tektites drives people crazy, and crazy people do not write good books... * You have a great sense of humor. And just as I mentioned earlier concerning Rob Matson, emails from you to The List are ALWAYS informative, and very often clever/funny. I have a folder entitled FACTS. It appears the majority of posts I have filed away in it originated from you. Thanks for all the great info you have thrown our way over the years. And also like Rob...please keep them coming. And Brian, very interesting original post from you, too. Thanks for taking the time to send it. Best wishes, Robert Woolard __ 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
Re: [meteorite-list] Beautiful time-lapse movie showing the growthin discovered minor planets since 1980
Wouldn't destroy the Earth either. It would change the Earth a lot. The interesting question is: what would replace us Mammals? Dinosaurs? ;) __ 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
