Re: [meteorite-list] Meteorites and Humidity: Some Questions . . .
One warning about desiccants... never let it touch the meteorite! It absorbs the water and if it touches the meteorite then the water is also touching the meteorite. /Göran Linton Rohr wrote: Hello Gracie and List. I live in southern California and I had, up until recently, been thinking I should be fairly immune to humidity and rust problems. Wrong! I've got a few irons starting to show a little rust and some pallasites (Brenham mainly) with more severe problems. I think desicant would go a long way in helping you. Just make sure you get a color coded, rechargeable type, so you can see when it's moist and dry it in the oven. I would definitely recommend Bill Mason's kit, which you linked us to. I recently purchased one from Bill, at the Tucson show. I've yet to break it out and put it to use, but was impressed with the demo that I got from Bill. I'm a relative novice with this topic though, so wait and see what others have to say. Best wishes. Linton - Original Message - From: gracie gra...@sheverb.com To: MeteorList meteorite-list@meteoritecentral.com Sent: Friday, March 05, 2010 5:41 PM Subject: [meteorite-list] Meteorites and Humidity: Some Questions . . . Hello Met List! Quick background info: About six or eight months ago, I began a meteorite collection. (I am so completely hooked.) I store them primarily in Riker boxes and some in the jewel cases they arrived in. I live in north central Florida and except for my air conditioned home, I don't have the meteorites in any other climate controlled container or cabinet. I'm noticing a few of the irons (Miles especially) and one or two of the stony irons to appear a little rustier than when they arrived. I've read the good information here (http://www.meteoritemarket.com/preserv.htm), but still have some questions. Given my location, is it unreasonable for me to expect that simply purchasing (and consistently replacing) desiccant for each Riker box and jewel box will stave off rust? I love having my meteorites on display and the notion of squirreling them away in airtight tupperware makes me sad. That being said, I would prefer to protect them than have them ruined by humidity. There are a number of places I can purchase desiccant online. Is there a preferred or recommended location? Finally, is a kit like this worth my time and money? http://www.bhigr.com/store/product.php?productid=453 Thanks so much for your help! Gracie __ 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] Meteorites and Humidity: Some Questions
I store them primarily in Riker boxes and some in the jewel cases they arrived in. I live in north central Florida and except for my air conditioned home, I don't have the meteorites in any other climate controlled container or cabinet. I'm noticing a few of the irons (Miles especially) and one or two of the stony irons to appear a little rustier than when they arrived. I am actually not so fond of Riker mounts. Maybe it is our Dutch climate, but I noted specimens start to rust on the contact face between the Riker glass and the stone/iron: probably because moisture condenses there and/or gets trapped. This was while there was dessicant in (some) of the mounts. The problems vanished once I got myself a glass display cage. My meteorites are much more stable now. - Marco - Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrack...@wanadoo.nl Cospar 4353 (Leiden): 52.15412 N, 4.49081 E (WGS84), +0 m ASL Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html Station (b)log: http://sattrackcam.blogspot.com - __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Auctions Ending: Lunar Tungsten Scale Cube NWA 5978 Main Mass - AD
G'day all, Just a quick note to mention two auctions ending today. The first is the lunar Tungsten Carbide Scale Cube WC#0482 with a sample of NWA 482 to match the serial. I suspect this will get A LOT of interest in the last couple of minutes with dozens of watchers. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=120537125592 And the second auction is for the 288g Main Mass of NWA 5978 (Prov.) which is a nice fresh L4 breccia. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=120537126459 Cheers, Jeff Kuyken Meteorites Australia www.meteorites.com.au __ 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] Meteorites and Humidity: Some Questions . . .
Hi Gracie, I sympathise as the UK is not the driest of places and I can't resist irons and pallasites. I try and tackle the problem from as many angles as possible and am still working on improving things after the trauma of seeing early pallasites as a pile of rust and olivine after being rather naive in the beginning. My main angle of attack is to keep them at a constant temperature in a glass cabinet (as you say, they do need to be 'Admire'd...pardon the pun). I keep the temperature constant by just leaving the lighting on constantly which works well. I am still working on making the cabinet more air tight and considering some other smaller better cabinets for the more unstable pieces. I also use several rechargeable silica gel units that can be recharged by plugging them in out of the cabinet and rotating them in sequence when the blue indicator crystals turn pink. These are the plastic units that make sure the silica does not get near your meteorites and are made to hang in damp wardrobes. I have had problems with silica gel bags in riker mounts actually getting damp and helping to rust the contents. Similar units here... http://cgi.ebay.co.uk/Rechargeable-wireless-dehumidifier_W0QQitemZ200444502184QQcmdZViewItemQQptZUK_Campervan_Caravan_Accessories?hash=item2eab6c60a8 I use Vapour Phase Corrosion Inhibitor methods aswell. There are various sprays similar to WD40 around that contain in addition VCIs which have worked well for me...I use small amounts of this to clean and coat polished/etched pieces. I avoid hard coatings as they nearly always let some moisture in that then creeps throughout. Unstable pallasites are the most difficult to me as adding anything oily can change the colour of the olivines. Stones seem to be ok just being kept dry...don't use anything oily on them! I also use VCI paper which is used in industry to wrap such things as tools in shipping to protect them from rust...the vapour given off coats the objects in all areas and repels the moisture. I cut up stips, fold them up and put them hidden in the back of the small gem boxes, rikers etc. They have to be replaced once in a while. You can get sponge emitters to put in cabinets, but I have never bothered with thosebut they may help with pallasites. The big old irons/Campos etc have had the galvanic treatment and I have a couple that I think I will soak in a caustic solution to extract the chlorides for a while soon as they continue to ooze small droplets. Hope some of that helps. Moving to the desert may help and then you can hunt for 28lb lumps like Guido too...that an option I am tempted by. :-) Regards, Graham E, UK gracie gra...@sheverb.com wrote: Hello Met List! Quick background info: About six or eight months ago, I began a meteorite collection. (I am so completely hooked.) I store them primarily in Riker boxes and some in the jewel cases they arrived in. I live in north central Florida and except for my air conditioned home, I don't have the meteorites in any other climate controlled container or cabinet. I'm noticing a few of the irons (Miles especially) and one or two of the stony irons to appear a little rustier than when they arrived. I've read the good information here (http://www.meteoritemarket.com/preserv.htm), but still have some questions. Given my location, is it unreasonable for me to expect that simply purchasing (and consistently replacing) desiccant for each Riker box and jewel box will stave off rust? I love having my meteorites on display and the notion of squirreling them away in airtight tupperware makes me sad. That being said, I would prefer to protect them than have them ruined by humidity. There are a number of places I can purchase desiccant online. Is there a preferred or recommended location? Finally, is a kit like this worth my time and money? http://www.bhigr.com/store/product.php?productid=453 Thanks so much for your help! Gracie __ 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 search for aliens should start on Earth not outer space, says scientist
Resurrecting this thread from a couple of months back: http://www.timesonline.co.uk/tol/news/science/eureka/article7040864.ece __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks from Space Picture of the Day - March 6, 2010
http://www.rocksfromspace.org/March_6_2010.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
[meteorite-list] And there's likely a crater in a crater in the crater in the crater
http://www.msnbc.msn.com/id/35728750/ns/technology_and_science-space/ Crater-in-a-crater may offer peek at moon guts Part of the Apollo Basin may expose a portion of the moon's deep crust A big crater inside a huge crater on the moon could offer a view of the lunar innards, scientists now say. Here's the setup: Shortly after the moon formed, it got whacked, big time. The result, an enormous crater called the South Pole-Aitken basin. It's almost 1,500 miles across and more than five miles deep. The impact punched into the layers of the lunar crust, scattering that material across the moon and into space. The tremendous heat of the impact also melted part of the floor of the crater, turning it into a sea of molten rock. Story continues below ?advertisement | your ad here This is the biggest, deepest crater on the moon an abyss that could engulf the United States from the East Coast through Texas, exlained Noah Petro of NASA's Goddard Space Flight Center. But wait, there was more. Asteroid bombardment over billions of years has left the lunar surface pockmarked with craters of all sizes, and covered with solidified lava, rubble, and dust. Glimpses of the original surface, or crust, are rare, and views into the deep crust are rarer still. Now, scientists say a crater on the edge of the South Pole-Aitken basin may provide just such a view. Called the Apollo Basin and formed by the later impact of a smaller asteroid, it is about 300 miles across. It's like going into your basement and digging a deeper hole, Petro said. We believe the central part of the Apollo Basin may expose a portion of the moon's lower crust, he said. If correct, this may be one of just a few places on the moon where we have a view into the deep lunar crust, because it's not covered by volcanic material as many other such deep areas are. Just as geologists can reconstruct Earth's history by analyzing a cross-section of rock layers exposed by a canyon or a road cut, we can begin to understand the early lunar history by studying what's being revealed in Apollo. Petro presented his research Thursday at the Lunar and Planetary Science meeting in Houston. It was done using the moon Mineralogy Mapper (M3), a NASA instrument on board India's Chandrayaan-1 lunar-orbiting spacecraft. Analysis of the light, or spectra, in images revealed that portions of the interior of Apollo have a similar composition to the impact melt in the South Pole-Aitken (SPA) basin. As you go deeper into the moon, the crust contains minerals have greater amounts of iron, the researchers explained in a statement. When the moon formed, it was largely molten. Minerals containing heavier elements, like iron, sank down toward the core, and minerals with lighter elements, like silicon, potassium, and sodium, floated to the top, forming the original lunar crust. The asteroid that created the SPA basin probably carved through the crust and perhaps into the upper mantle, Petro said. The impact melt that solidified to form the central floor of SPA would have been a mixture of all those layers. We expect to see that it has slightly more iron than the bottom of Apollo, since it went deeper into the crust. This is what we found with M3. However, we also see that this area in Apollo has more iron than the surrounding lunar highlands, indicating Apollo has uncovered a layer of the lunar crust between what is typically seen on the surface and that in the deepest craters like SPA. The lower crust exposed by Apollo survived the impact that created SPA probably because it was on the edge of SPA, several hundred miles from where the impact occurred, according to Petro. Both SPA and Apollo are estimated to be among the oldest lunar craters, based on the large number of smaller craters superimposed on top of them. As time passes, old craters get covered up with new ones, so a crater count provides a relative age; a crater riddled with additional craters is older than one that appears relatively clean, with few craters overlying it. As craters form, they break up the crust and form a regolith, a layer of broken up rock and dust, like a soil on the Earth. Although the Apollo basin is ancient and covered with regolith (what we call dirt on Earth), it still gives a useful view of the lower crust because the smaller meteorite impacts that create most of the regolith don't scatter material very far. Calculations of how the regolith forms indicate that at least 50 percent of the regolith is locally derived, said Petro. So although what we're seeing with M3 has been ground up, it still mostly represents the lower crust. Earth was bombarded back then, too. But the record of the events have been folded back into our active planet or weathered away. On the moon, which is comparatively dead geologically, the record of scars remains. The Apollo and SPA basins give us a window into the earliest history of the moon, and the moon gives us a window into the violent youth of Earth, Petro
Re: [meteorite-list] Rocks from Space Picture of the Day - March 6, 2010
Wow, I want one like that!! They have a nice one on display in Columbus... - Original Message From: Michael Johnson mich...@rocksfromspace.org To: meteorite-list@meteoritecentral.com Sent: Sat, March 6, 2010 6:28:15 AM Subject: [meteorite-list] Rocks from Space Picture of the Day - March 6, 2010 http://www.rocksfromspace.org/March_6_2010.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] And there's likely a crater in a crater in thecrater in the crater
Did Noah PETRO really have ANY choice in becoming Geo or Lunar crustal specialist? Was his path preordained?? Jerry Flaherty -- From: Darren Garrison cyna...@charter.net Sent: Saturday, March 06, 2010 8:49 AM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] And there's likely a crater in a crater in thecrater in the crater http://www.msnbc.msn.com/id/35728750/ns/technology_and_science-space/ Crater-in-a-crater may offer peek at moon guts Part of the Apollo Basin may expose a portion of the moon's deep crust A big crater inside a huge crater on the moon could offer a view of the lunar innards, scientists now say. Here's the setup: Shortly after the moon formed, it got whacked, big time. The result, an enormous crater called the South Pole-Aitken basin. It's almost 1,500 miles across and more than five miles deep. The impact punched into the layers of the lunar crust, scattering that material across the moon and into space. The tremendous heat of the impact also melted part of the floor of the crater, turning it into a sea of molten rock. Story continues below ?advertisement | your ad here This is the biggest, deepest crater on the moon - an abyss that could engulf the United States from the East Coast through Texas, exlained Noah Petro of NASA's Goddard Space Flight Center. But wait, there was more. Asteroid bombardment over billions of years has left the lunar surface pockmarked with craters of all sizes, and covered with solidified lava, rubble, and dust. Glimpses of the original surface, or crust, are rare, and views into the deep crust are rarer still. Now, scientists say a crater on the edge of the South Pole-Aitken basin may provide just such a view. Called the Apollo Basin and formed by the later impact of a smaller asteroid, it is about 300 miles across. It's like going into your basement and digging a deeper hole, Petro said. We believe the central part of the Apollo Basin may expose a portion of the moon's lower crust, he said. If correct, this may be one of just a few places on the moon where we have a view into the deep lunar crust, because it's not covered by volcanic material as many other such deep areas are. Just as geologists can reconstruct Earth's history by analyzing a cross-section of rock layers exposed by a canyon or a road cut, we can begin to understand the early lunar history by studying what's being revealed in Apollo. Petro presented his research Thursday at the Lunar and Planetary Science meeting in Houston. It was done using the moon Mineralogy Mapper (M3), a NASA instrument on board India's Chandrayaan-1 lunar-orbiting spacecraft. Analysis of the light, or spectra, in images revealed that portions of the interior of Apollo have a similar composition to the impact melt in the South Pole-Aitken (SPA) basin. As you go deeper into the moon, the crust contains minerals have greater amounts of iron, the researchers explained in a statement. When the moon formed, it was largely molten. Minerals containing heavier elements, like iron, sank down toward the core, and minerals with lighter elements, like silicon, potassium, and sodium, floated to the top, forming the original lunar crust. The asteroid that created the SPA basin probably carved through the crust and perhaps into the upper mantle, Petro said. The impact melt that solidified to form the central floor of SPA would have been a mixture of all those layers. We expect to see that it has slightly more iron than the bottom of Apollo, since it went deeper into the crust. This is what we found with M3. However, we also see that this area in Apollo has more iron than the surrounding lunar highlands, indicating Apollo has uncovered a layer of the lunar crust between what is typically seen on the surface and that in the deepest craters like SPA. The lower crust exposed by Apollo survived the impact that created SPA probably because it was on the edge of SPA, several hundred miles from where the impact occurred, according to Petro. Both SPA and Apollo are estimated to be among the oldest lunar craters, based on the large number of smaller craters superimposed on top of them. As time passes, old craters get covered up with new ones, so a crater count provides a relative age; a crater riddled with additional craters is older than one that appears relatively clean, with few craters overlying it. As craters form, they break up the crust and form a regolith, a layer of broken up rock and dust, like a soil on the Earth. Although the Apollo basin is ancient and covered with regolith (what we call dirt on Earth), it still gives a useful view of the lower crust because the smaller meteorite impacts that create most of the regolith don't scatter material very far. Calculations of how the regolith forms indicate that at least 50 percent of the regolith is locally derived, said Petro. So although what
Re: [meteorite-list] Meteorites and Humidity: Some Questions
These may be daft ideas or already tried, but apart from dessicant removal of moisture what about another line of attack... (1) Removal of oxygen from the container... fill it with argon or nitrogen (2) Scavenge oxygen from the container. The food industry deploys scavenger sachets to remove oxygen from packaging and the most popular seem to be sachets of iron filings. Probably these will oxidise quicker than the meteorite given the larger surface area and absence of nickel. http://www.nitro-pak.com/product_info.php?products_id=366 (3) UV activated scavenging polymers exist but these seem designed for final depletion of an already low O2 atmosphere 2%. Might work in conjunction with (1). http://www.sealedair.com/products/food/os/oxygen_scavenging.html (4) Use zinc as a sacrificial scavenger. Perhaps pack a perforated non-conducting false bottom to the container with zinc wool thus isolating it from contact with the specimen. (5) Treat the specimen with vapour phase corrosion inhibiters. This will form a molecular film on the specimen so I'm not sure of whether there would be any alteration in the visual appearance of the specimen, or any other undesirable side effects. http://www.agmcontainer.com/vci/index.htm http://www.agmcontainer.com/vci/vci_faqs.html Regards, John -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Marco Langbroek Sent: March-06-10 3:11 AM To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Meteorites and Humidity: Some Questions I store them primarily in Riker boxes and some in the jewel cases they arrived in. I live in north central Florida and except for my air conditioned home, I don't have the meteorites in any other climate controlled container or cabinet. I'm noticing a few of the irons (Miles especially) and one or two of the stony irons to appear a little rustier than when they arrived. I am actually not so fond of Riker mounts. Maybe it is our Dutch climate, but I noted specimens start to rust on the contact face between the Riker glass and the stone/iron: probably because moisture condenses there and/or gets trapped. This was while there was dessicant in (some) of the mounts. The problems vanished once I got myself a glass display cage. My meteorites are much more stable now. - Marco - Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrack...@wanadoo.nl Cospar 4353 (Leiden): 52.15412 N, 4.49081 E (WGS84), +0 m ASL Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html Station (b)log: http://sattrackcam.blogspot.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
[meteorite-list] Fw: meteorite fire sale
Hello and good day all. I am posting this email for Chicago Steve Arnold. Best to all, Griff Parker, Colorado, USA - Original Message - From: steve arnold stevenarnold60...@yahoo.com To: arnaudmig...@hotmail.com; ba...@chorus.net; bldlv1...@yahoo.com; bobe5...@comcast.net; x...@comcast.net; bobhol...@cox.net; nightsk...@gmail.com; searchingfor...@sbcglobal.net; brettw_mcmus...@sbcglobal.net; c-giess...@gi-po.de; cdtuc...@cox.net; countde...@earthlink.net; winsc...@gmail.com; dave.mo...@dri.edu; edeck...@triad.rr.com; ensorama...@ntlworld.com; e...@meteoritewatch.com; griff6...@msn.com; garych...@live.com; fujih...@ifa.hawaii.edu Sent: Friday, March 05, 2010 8:44 PM Subject: meteorite fire sale Hi all.I am selling off most of my main collection. Alot of nice complete stones and sikhote-alins as well.Free shipping anywhere. All is on my website. Steve R. Arnold, Chicago!! chicagometeorites.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
Re: [meteorite-list] Fw: meteorite fire sale
On Sat, 6 Mar 2010 10:34:43 -0700, you wrote: Hello and good day all. I am posting this email for Chicago Steve Arnold. Time for the quarterly going out of business sale already? Wow, how time flies. __ 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] Meteorites and Humidity: Some Questions
Interesting to a rather unsophisticated Dehumidifierer. I'll wait with bated breath for responses from the List Jerry Flaherty -- From: John Hendry p...@pict.co.uk Sent: Saturday, March 06, 2010 12:32 PM To: marco.langbr...@wanadoo.nl Cc: Meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Meteorites and Humidity: Some Questions These may be daft ideas or already tried, but apart from dessicant removal of moisture what about another line of attack... (1) Removal of oxygen from the container... fill it with argon or nitrogen (2) Scavenge oxygen from the container. The food industry deploys scavenger sachets to remove oxygen from packaging and the most popular seem to be sachets of iron filings. Probably these will oxidise quicker than the meteorite given the larger surface area and absence of nickel. http://www.nitro-pak.com/product_info.php?products_id=366 (3) UV activated scavenging polymers exist but these seem designed for final depletion of an already low O2 atmosphere 2%. Might work in conjunction with (1). http://www.sealedair.com/products/food/os/oxygen_scavenging.html (4) Use zinc as a sacrificial scavenger. Perhaps pack a perforated non-conducting false bottom to the container with zinc wool thus isolating it from contact with the specimen. (5) Treat the specimen with vapour phase corrosion inhibiters. This will form a molecular film on the specimen so I'm not sure of whether there would be any alteration in the visual appearance of the specimen, or any other undesirable side effects. http://www.agmcontainer.com/vci/index.htm http://www.agmcontainer.com/vci/vci_faqs.html Regards, John -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Marco Langbroek Sent: March-06-10 3:11 AM To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Meteorites and Humidity: Some Questions I store them primarily in Riker boxes and some in the jewel cases they arrived in. I live in north central Florida and except for my air conditioned home, I don't have the meteorites in any other climate controlled container or cabinet. I'm noticing a few of the irons (Miles especially) and one or two of the stony irons to appear a little rustier than when they arrived. I am actually not so fond of Riker mounts. Maybe it is our Dutch climate, but I noted specimens start to rust on the contact face between the Riker glass and the stone/iron: probably because moisture condenses there and/or gets trapped. This was while there was dessicant in (some) of the mounts. The problems vanished once I got myself a glass display cage. My meteorites are much more stable now. - Marco - Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrack...@wanadoo.nl Cospar 4353 (Leiden): 52.15412 N, 4.49081 E (WGS84), +0 m ASL Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html Station (b)log: http://sattrackcam.blogspot.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 __ 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] Fw: meteorite fire sale
Well, it has been a month since he left Tucson. g Linton - Original Message - From: Darren Garrison cyna...@charter.net To: meteorite-list meteorite-list@meteoritecentral.com Sent: Saturday, March 06, 2010 10:26 AM Subject: Re: [meteorite-list] Fw: meteorite fire sale On Sat, 6 Mar 2010 10:34:43 -0700, you wrote: Hello and good day all. I am posting this email for Chicago Steve Arnold. Time for the quarterly going out of business sale already? Wow, how time flies. __ 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] Fw: meteorite fire sale
Hardley his main collection as he put it. A bunch on primarily unclassified specimens he bought recently. - Original Message - From: Linton Rohr linton...@earthlink.net To: cyna...@charter.net Cc: meteorite-list@meteoritecentral.com Sent: Saturday, March 06, 2010 2:27 PM Subject: Re: [meteorite-list] Fw: meteorite fire sale Well, it has been a month since he left Tucson. g Linton - Original Message - From: Darren Garrison cyna...@charter.net To: meteorite-list meteorite-list@meteoritecentral.com Sent: Saturday, March 06, 2010 10:26 AM Subject: Re: [meteorite-list] Fw: meteorite fire sale On Sat, 6 Mar 2010 10:34:43 -0700, you wrote: Hello and good day all. I am posting this email for Chicago Steve Arnold. Time for the quarterly going out of business sale already? Wow, how time flies. __ 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] Fw: Meteor Crater or Barringer Crater, and LaPaz, part 2
From Robert Warren Sir, As the Bureau of Geographical Nomenclature is the countries foremost authority on names of geological and geographical features, the name most specialists as you say use namely Barringer Meteorite Crater is wrong. (Actually, Barringer Crater - EP) It is that Bureau that made the determination to call it Meteor Crater. Back in the late 1940's to 1950's when Lincoln LaPaz and a few of his buddies tried to get it renamed to Barringer Meteorite Crater, they were fighting that Bureau which told them no changes would be made. Their choice was final. The name follows standard meteorite naming protocols of both the 1940's as well as todays. Meteorites are named after the nearest Postal Office. In 1907, Fairchild used that protocol and even mentions it in his paper when he uses the Nearest Post Office, Meteor, Arizona, to name the crater. The name does not refer to meteors, or meteorites. It is no different than the usage of the same name to name a particularly fast train that used to ride the rails, known as the Meteor Express. Today that post office does not exist, but the railroad stop still does. It is called Sunshine stop, being just north of the Rimmy Jim exit to the crater off the I-40. The Meteor Post Office was approved by President Teddy Roosevelt around 1903-1906, when D. M. Barringer asked him if one could be started, because up to that time, he was having to go to the Canyon Diablo Trading Post being run by Fred Volz over where the BNSF railroad still crosses the Canyon Diablo. [It looks to me like Barringer did not know the difference between a meteor and a meteorite - EP] That extra distance amounted to a round trip of about 20 miles whereas if a stop with a post office could be started north of the crater it would be a complete round trip of about 12 miles. Back when a trip of 20 miles was a day long event with horses or horse and buggies, that amounted to something. Roosevelt agreed and ordered such a post office be started. Now when Lapaz and buddies tried to get the crater renamed, they were doing it for one reason and one reason only. To get in good with the Barringer family, and the Chilson and Tremaine familes. The Chilson and Tremaine families had full control of the Museum on the rim since 1941 when they leased it from the Barringers on a 99 year lease which has since been extended. But together those two families also owned and ran the Bar-T-Bar ranch which pretty much surrounds the crater. They were all trying to stop people not associated with the University of New Mexico (LaPaz's place of work) [Nininger - EP] from having access to the crater. The same group also was trying to gain complete control of the Meteoritical Society, which they came close to doing. But when the total world wide membership dropped so badly that for members here in the U.S. had almost dropped to the levels it had after its first two months of being in existence, they lost out. They had managed to get people like the Nininger's kicked out of the society but he was asked in the late 1950's- to early 1960's to rejoin because others saw how he had done so much work and Lapaz and buddies had not. (for this history see Ursula Marvin's history in the publication Meteoritics 1993.) So even these old timers and if you read the modern literature, even most of the modern researchers still use the OFFICIAL World recognized name for the crater METEOR CRATER and not the name Barringer crater. If some one uses the name Barringer Crater, they are only paying tribute to the owners of the crater and not its offical name. Now as to what the Navajo or any other Indian tribe may call it, no one knows. [Actually, the Navajo do, but they don't really care to share.] Lapaz screwed that up for every one when he published a short paper in Popular Astronomy back in 1950-52. He wrote this paper where he claims discovery of some ruins on the rim of the crater, and mentions how an archaeologist from the Univ. of New Mexico had excavated it, all to prove that Nininger was wrong, when he said that modern day Indians wanted nothing to do with the Crater. The problems cause by LaPaz, is first, the archaeologist never excavated any ruins, he had neither the time, the money for any digs, plus he was only at that University working on his doctorate before he headed back north to Canada where he still resides today. I know I have talked with him at some length about this. In fact he says LaPaz was certifiably crazy. The second problem is the only ruins known by anyone on and around the crater were already known in 1891 when Grove Karl Gilbert in his survey of the crater and surroundings drew four such structures on his topographical map which was published by Merrill in 1908 in his paper on the Crater. [ - EP] So LaPaz discovered nothing. If there has ever been an indian name for the crater it would have originated with either the Anazazi or even the
[meteorite-list] Diana Dale Kasco
Greetings List, If anyone has contact info on either Dale or Diana Kasco (Winslow St. Park Forest),please contact me off list. thanx, Steve Steve Witt IMCA #9020 http://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] Rocks from Space Picture of the Day - March 6, 2010
Absolutely beautiful! It's hard to believe that in a couple of months on May 1st it will be 150 years since this came thundering to Earth. Thanks for sharing, Jeff - Original Message - From: Mark Bowling mina...@yahoo.com To: meteorite-list@meteoritecentral.com Sent: Sunday, March 07, 2010 1:15 AM Subject: Re: [meteorite-list] Rocks from Space Picture of the Day - March 6,2010 Wow, I want one like that!! They have a nice one on display in Columbus... - Original Message From: Michael Johnson mich...@rocksfromspace.org To: meteorite-list@meteoritecentral.com Sent: Sat, March 6, 2010 6:28:15 AM Subject: [meteorite-list] Rocks from Space Picture of the Day - March 6, 2010 http://www.rocksfromspace.org/March_6_2010.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 __ 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] 14C calibration
Hi Gran, all - Just going through some old mail now. It was the abnormal dates and regional variations in 14C that got Firestone started. 14C datng was and is one of his specialties. He started out with a supernova hypothesis to try to explain it at first (1999), and then evolved. It should not be that hard to find one of the multiple statements of the abnormal 14C dates. Paul probably has them right at hand. If not, some of Firestone's papers refereed, published papers are available straight from him. E.P. Grondine Man and Impact in the Americas __ 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 -AWESOME NWA achondrite - very good prices!
Hi to all, Hope everyone is doing well. I have some really nice fusion crusted NWA achondrite available. While it is currently being classified, I am needing to get some of this sold asap. I have several complete slices, part slices and a 149 gram end cut for sale Price starts at $13 per gram and buyers will be updated once a NWA number is assigned. While it was first thought this was similar to the Howardite NWA 1929, preliminary testing has shown that these are not the same due to the absence of pervasive recrystallization. Here is the info from preliminary testing: This sample is different than the one Ted Bunch has characterized as NWA 1929. Here is a brief listing of its contents: -metal rich eucrite -Gabbro -Fine-grained Basalt -Recrystallized Basalt -Diogenite -Melt Clasts NWA 1929 is described as having pervasive recrystallization (its been hit so hard that grains within the original componants recrystallized to accomodate the stress it suffered). This does NOT show pervasive recrystallization. Pictures: Slices http://i27.photobucket.com/albums/c165/jedisdiamond/DSCF3529.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/DSCF3528.jpg http://i27.photobucket.com/albums/c165/jedisdiamond/DSCF3523.jpg End cut http://i27.photobucket.com/albums/c165/jedisdiamond/DSCF3261.jpg Fusion crust http://i27.photobucket.com/albums/c165/jedisdiamond/DSCF3257.jpg Thanks for looking. Email me off list for more on this material. Greg Catterton www.wanderingstarmeteorites.com IMCA member 4682 On Ebay: http://stores.shop.ebay.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
