[meteorite-list] Ensisheim-St Marie shows
Hi everyone, I am sitting in Frankfurt right now, but driving back to France today. I just wanted to report a little about the Ensisheim show. It was great, lots of friends I haven't seen in a year, we caught up on meteorite news, tales of great hunts and new goodies. I did not see much new material at the show, virtually nothing new in fact other than some new possible planetary material from NWA. Business for me was low, but I did not bring much. It was also another one of those hot years, very warm and humid, so by Sunday many people felt drained of any energy, myself included, but I think that has a little more to do with the incredible amounts of whiskey that Marc and Peter dug up and the fact that the Russians won the soccer game Sat night in the European championship, which ended up with many of us drinking in the square until 7 am! I don´t remember that much about it, let me tell you! Well, in St Marie I will not have much chance to check emails, so don't be surprised if I do not answer anything for days. Michael Farmer __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Call for Articles for the November issue ofMeteorite magazine
Dear List, The link to the page to send your name to the Moon on the LRO mission is at: http://lunar.gsfc.nasa.gov/# Best, Dirk Ross...Tokyo --- On Tue, 6/24/08, Greg Redfern [EMAIL PROTECTED] wrote: From: Greg Redfern [EMAIL PROTECTED] Subject: Re: [meteorite-list] Call for Articles for the November issue ofMeteorite magazine To: [EMAIL PROTECTED] Cc: meteorite-list@meteoritecentral.com Date: Tuesday, June 24, 2008, 7:59 AM A bit off topicLRO/LCROSS mission to the Moon??? Greg Redfern NASA JPL Solar System Ambassador http://www2.jpl.nasa.gov/ambassador/index.html WHAT'S UP?: THE SPACE PLACE http://www.wtopnews.com/?sid=600113nid=421 ASTROCAST http://astrocast.tv/ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Friday, June 20, 2008 12:05 PM To: [EMAIL PROTECTED] Cc: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Call for Articles for the November issue ofMeteorite magazine Hello Everyone: Happy Summer Solstice! We hope that you enjoyed the May issue of Meteorite. We have just finished editing the August issue. The articles that are in the queue are all very interesting and I am sure you will enjoy them. Some articles are from long-time authors and others are from first or second time authors. Now, guess what? Yes, it is that time again! It is time to start thinking about writing an article for the November issue of Meteorite. The next deadline is August 18. Just in time to tell us about your summer meteorite hunts, your summer reading (a book review), etc. There are a number of you who put off submitting articles, so I will be getting back to you very soon. Articles can be anywhere from about 1,000 words up to 2,500 words (or a little longer) with 4 or 5 pictures. A good picture might even make it to the cover! We also welcome book reviews and letters to the editors. Please consider writing an article. If you are not sure, contact us! We hope to hear from you soon. Larry and Nancy Lebofsky Editors, Meteorite magazine __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com 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 - June 24, 2008
http://www.rocksfromspace.org/June_24_2008.html **Gas prices getting you down? Search AOL Autos for fuel-efficient used cars. (http://autos.aol.com/used?ncid=aolaut000507) __ http://www.meteoritecentral.com 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 - June 24, 2008
H Chondrite? I have the same material and its classificated Enstatite Chondrite Mateo - Original Message - Da : [EMAIL PROTECTED] A : meteorite-list@meteoritecentral.com Oggetto : [meteorite-list] Rocks from Space Picture of the Day - June 24, 2008 Data : Tue, 24 Jun 2008 06:09:43 EDT http://www.rocksfromspace.org/June_24_2008.html **Gas prices getting you down? Search AOL Autos for fuel-efficient used cars. (http://autos.aol.com/used?ncid=aolaut000507) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NWA 4716: RFS Picture of the Day - June 24, 2008
Hello Pete, Matteo and List, Pete wrote: New NWA 4716 [Provisional] Meteorite... If the meteorite pictured is NWA 4716, it is no longer provisional. According to the Met.Bull., it is now an official meteorite name! See here: http://tin.er.usgs.gov/meteor/metbull.php?sea=NWA+4716sfor=namesants=falls=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allphot=snew=0pnt=nocode=45643 Cheers, Bernd __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Lighten up, it's just semantics OT Hoot
This was and will forever be the finest written piece of doubletalk I ever had the privilage of reading in my entire life Wat to go. Pete - Original Message - From: Mr EMan [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com; Michael Gilmer [EMAIL PROTECTED] Sent: Tuesday, June 24, 2008 12:48 AM Subject: Re: [meteorite-list] Lighten up, it's just semantics OT Hoot Well I can see that Garrison's house is in Mars with a Bad Moon is rising. Too bad the demoted Pluto is no longer influencing the encirclement of Saturn thus giving rise to an opening for a a negative ancillary vibration bouncing off Venus... Elton OK I am but a novice astro-logger and could never hope to be as accomplished as the following expert. This posting was made to a ahem..scientific list elsewhere regarding Dolphins beaching themselves: (Notice the dates mentioned June 21-22 came and went without the headlines forecasted) Astrologically, this tags well with transiting Uranus ruler of the brainy sign of Aquarius (a human sign and an Air sign) currently in Pisces (the most fishy of the Water signs) recently under multiple squares from the faster moving planets now in (Tropical) Gemini, an Air sign that is also a human sign. Indeed transiting Mercury for the last couple of weeks and until past the first week of July is in stationary (currently retrograde) square with said Uranus in Pisces and now Venus and the Sun aligned in geocentric conjunction also are in tight squares with said Uranus in Pisces. It's noteworthy to add that this currently partiling transiting Sun Venus conjunction in Gemini square transiting Uranus in Pisces is in the same degree where in the root US horoscope (Declaration of Independence chart) Mars occupies in Gemini. This relates to recent accusations published yesterday involving obvious evidence of navy sonar connection with some of these marine mammals' casualties. At birth (Independence chart) the USA has a tight Mars Neptune square. So the recent arrival of transiting Uranus in Pisces to square US Mars in Gemini implies this transiting Uranus in Pisces arriving for months of opposition US Neptune in Virgo too!. Also related is the current opposition of transiting Mars (a natural malefic) in Leo to transiting Neptune in Aquarius. This orb is still widely applicative clearly predicting that there will soon be an all time boost to the numbers of these marine mammals losing their higher faculties. What we have currently is the Mars/Saturn midpoint (the proverbial malefics) exact opposition Neptune (ruler of the oceans); but Mars is heading towards this opposition Neptune itself now partiling (turning exact its orb of 180 degrees defining the opposition aspect) in 10 more days, on June 21 when many more casualties in the sea will make the headlines. The Moon joins the opposition conjoining Neptune in Aquarius both opposition Mars in Leo. This will be the historical climacteric peak of major ocean catastrophes: this coming June 22. Thanks for your keen and kind attention. stay fine Gonzo ( a Ph.D in the 21st Century) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Lighten up, it's just semantics
The trouble with astrologers is they vote, they influence, and they pass their ignorance on to the next generation. Dog-kicking is not a problem because the dog can take a bite out of the offending leg. If an astrologer influences a politician (Nancy and Ronald, e.g.), it's not something to take lightly. From: Michael Gilmer [EMAIL PROTECTED] Subject: [meteorite-list] Lighten up, it's just semantics To: meteorite-list@meteoritecentral.com Geez, lighten up a little bit. What has any astrologer ever done to you? Did one kick your dog or something? Life is too short to get bent out of shape over such things. Paul Swartz __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Lighten up, it's just semantics
I'm reminded of something that happened after the great Montrose fireball on Thanksgiving 2002. As usual, I was receiving calls from newspapers and TV stations. However, being a big holiday, all the news staffers were pretty much interns, with little experience. I answered a bunch of questions for a reporter at the Rocky Mountain News, and next day was shocked to find myself identified in the paper as an astrologer from Guffey. Worse, this was also posted online, and in this day of Google, the last thing I wanted was that association! So I called the RMN editor, and asked him to change the wording in their online archives. Oh, no!, he said, We can't change archives. I asked him what they would do if they had accidentally called a photographer a pornographer. He got the point, and they changed the archives. Chris * Chris L Peterson Cloudbait Observatory http://www.cloudbait.com __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Astrology/Astronomy
Hi, My dearly-departed and beloved grandmother was an avid astrologer. I don't share her beliefs, which were admittedly from somewhere way out past left field. But she was a loving, kind, and INTELLIGENT woman with a masters degree. She just believed in a few goofy things like astrology behind closed doors. She didn't push her beliefs onto other people and rarely talked about it. In fact, us grandkids didn't even know she was an astrologer until after she passed away. At any rate, life is too short to paint groups of people with a broad stroke of the brush. Lumping a large group of people together, without knowing them, and then launching obscenities and insults at them is bigotry. Substitute the word astrologer, in that rant that started this, with any word that describes a racial or religious group and you'll see my meaning. I subscribe to this group to learn about meteoritics, not to listen to the bitter and hostile rants of a foul-mouthed person. And I don't appreciate someone calling my grandmother a *%#$! dimwit or nitwit or whatever it was. I'm sure I will get flamed for this, but it was not me who injected an off-topic rant into the list to start with. Regards and clear skies, MikeG . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com MySpace - http://www.myspace.com/fine_meteorites_4_sale .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Lighten up, it's just semantics
On Tue, 24 Jun 2008 09:04:11 -0700, you wrote: The trouble with astrologers is they vote, they influence, and they pass their ignorance on to the next generation. Dog-kicking is not a problem because the dog can take a bite out of the offending leg. If an astrologer influences a politician (Nancy and Ronald, e.g.), it's not something to take lightly. And I only singled out astrologers because the so called science teacher talked about following astrlogy (and Mexico Doug mentioned outlawing them). There's plenty of room in my concentration camp for astrologers, young-earthers, flat-earthers (yes, there are still some around), moon landing deniers, holocaust deniers (yes, I see the irony here), cryptozoologists, alien anal probe victims, Bush staged 9/11 believers (out of all Bush's crimes, that wasn't one of them), and faith healers. Of course, that'd take up a bit of room. I suggest fencing in Utah. That'd take care of the Mormons, too. (Oh, yeah, round up the Scientologists to join them). __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Field Guide to Meteors and Meteorites now Available
I pre-ordered on May 26th and my Amazon account shows that the book shipped by 2nd day air (I have joined Amazon's Prime program that offers expedited order fulfillment and 2nd day air shipment on all orders for $80/yr) on Monday the 23rd and shows expected delivery on Wednesday June the 25th. Best Regards, Pat --- On Sun, 6/22/08, Charley [EMAIL PROTECTED] wrote: From: Charley [EMAIL PROTECTED] Subject: Re: [meteorite-list] Field Guide to Meteors and Meteorites now Available To: meteorite-list@meteoritecentral.com Date: Sunday, June 22, 2008, 9:32 AM Hi all, I ordered mine on Amazon.com when Mike first alerted the list (April 15) that the book was soon to be available. The cost was to be $25.05 (including free shipping and the pre-order discount) . About a week and a half ago I received an email from Amazon telling me that there was a delay and asking me to respond if I was still interested. I responded in the affirmative and later received an email from Amazon that the new expected date was in late July. I just visited my Amazon order page and it shows that the anticipated shipping date is July 21 (and my pre-order discount has disappeared). Clicking on the book title takes me to the book description page where it is noted that the book is temporarily out of stock. Apparently Amazon is confused. Anyway, I've waited 2 months already so what is another month? It would be interesting to know if anyone actually receives the book before July 21. Best regards, Charley Well, squids don't work. Hey! Let's try elephants ! Hannibal Date: Sat, 21 Jun 2008 12:05:31 -0400 From: Darren Garrison [EMAIL PROTECTED] Subject: Re: [meteorite-list] Field Guide to Meteors and Meteorites now Available To: Meteorite List meteorite-list@meteoritecentral.com Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii On Sat, 21 Jun 2008 08:48:11 -0700 (PDT), you wrote: Good Morning- For those of you waiting- I just got an email at 9:30 this morning from Amazon that my book shipped. The book must have been released and Amazon now has them in. The odd thing was yesterday I got an email from them offering to cancel my order (if I didn't respond) as the delivery date was now undetermined. I'm glad I responded to continue with the order. Have a good day. Coincidentally, I was just looking at that on Amazon a few minutes ago, and wondering why nobody had mentioned getting theirs yet (release date at Amazon is shown as June 6th). __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Astrology/Astronomy
Hi Mike, I whole heartily agree. I see now we are adding politics in the argument which is a good way to open a can of worms to get a big off topic of politics going on here. Sooner or later someone will do a search and see the discussion and invite all his/her friends to dive in to the off topic subject. But then things have been sorta slow lately. Best! --AL Mitterling Michael Gilmer wrote: Hi, My dearly-departed and beloved grandmother was an avid astrologer. I don't share her beliefs, which were admittedly from somewhere way out past left field. But she was a loving, kind, and INTELLIGENT woman with a masters degree. She just believed in a few goofy things like astrology behind closed doors. She didn't push her beliefs onto other people and rarely talked about it. In fact, us grandkids didn't even know she was an astrologer until after she passed away. At any rate, life is too short to paint groups of people with a broad stroke of the brush. Lumping a large group of people together, without knowing them, and then launching obscenities and insults at them is bigotry. Substitute the word astrologer, in that rant that started this, with any word that describes a racial or religious group and you'll see my meaning. I subscribe to this group to learn about meteoritics, not to listen to the bitter and hostile rants of a foul-mouthed person. And I don't appreciate someone calling my grandmother a *%#$! dimwit or nitwit or whatever it was. I'm sure I will get flamed for this, but it was not me who injected an off-topic rant into the list to start with. Regards and clear skies, MikeG . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com MySpace - http://www.myspace.com/fine_meteorites_4_sale .. - __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] 'Field Guide to Meteors and Meteorites' now Available
Pat: Great! Thanks Larry On Tue, June 24, 2008 10:36 am, Pat Brown wrote: I pre-ordered on May 26th and my Amazon account shows that the book shipped by 2nd day air (I have joined Amazon's Prime program that offers expedited order fulfillment and 2nd day air shipment on all orders for $80/yr) on Monday the 23rd and shows expected delivery on Wednesday June the 25th. Best Regards, Pat --- On Sun, 6/22/08, Charley [EMAIL PROTECTED] wrote: From: Charley [EMAIL PROTECTED] Subject: Re: [meteorite-list] Field Guide to Meteors and Meteorites now Available To: meteorite-list@meteoritecentral.com Date: Sunday, June 22, 2008, 9:32 AM Hi all, I ordered mine on Amazon.com when Mike first alerted the list (April 15) that the book was soon to be available. The cost was to be $25.05 (including free shipping and the pre-order discount) . About a week and a half ago I received an email from Amazon telling me that there was a delay and asking me to respond if I was still interested. I responded in the affirmative and later received an email from Amazon that the new expected date was in late July. I just visited my Amazon order page and it shows that the anticipated shipping date is July 21 (and my pre-order discount has disappeared). Clicking on the book title takes me to the book description page where it is noted that the book is temporarily out of stock. Apparently Amazon is confused. Anyway, I've waited 2 months already so what is another month? It would be interesting to know if anyone actually receives the book before July 21. Best regards, Charley Well, squids don't work. Hey! Let's try elephants ! Hannibal Date: Sat, 21 Jun 2008 12:05:31 -0400 From: Darren Garrison [EMAIL PROTECTED] Subject: Re: [meteorite-list] Field Guide to Meteors and Meteorites now Available To: Meteorite List meteorite-list@meteoritecentral.com Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii On Sat, 21 Jun 2008 08:48:11 -0700 (PDT), you wrote: Good Morning- For those of you waiting- I just got an email at 9:30 this morning from Amazon that my book shipped. The book must have been released and Amazon now has them in. The odd thing was yesterday I got an email from them offering to cancel my order (if I didn't respond) as the delivery date was now undetermined. I'm glad I responded to continue with the order. Have a good day. Coincidentally, I was just looking at that on Amazon a few minutes ago, and wondering why nobody had mentioned getting theirs yet (release date at Amazon is shown as June 6th). __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] poor picture, nice surface features
For anyone who likes different surface features, here is a gouged out grove along one edge of a small blackened (suspect) stone. It is running nearly the length . If you're like me, that ablation feature is exciting to see. Sorry the pic is not so good. Took it through the m-scope. The second picture is of the same stone on another side. Lots of grooving. Mike in CO micro hunter in southwest Colorado http://i127.photobucket.com/albums/p124/mmurray_02/2008_12.jpg http://i127.photobucket.com/albums/p124/mmurray_02/2008_11.jpg __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Wizards (?) of osmium
Hi Sterling, all Another possibility is that the impacting objects were comets rather than asteroids, and contained much less osmium to begin with. But chemical traces of the impactors left behind in rocks and reported in previous studies suggest otherwise. Ackk. Resistance continues to Clube and Napier's injection model. Is it just Morrison and Rummel, or is it a not invented here thing with nationalistic overtones? __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Looking for material. Any material...
Hi All, Usually I don't post to list unless I'm having a sale, making an announcement, or rarely responding to a post, so please excuse this post. I've been not so quietly building my inventory, collection and selling material for some time now and would like to be able to offer more of a selection to my wide customer base. I'm looking for material. Just about any material will do. I am a dealer so please don't try to sell me at full retail, or work me on price because I'll tell you where you can put your meteorite. ;) I'll give you FAIR PRICE for your meteorites. I primarily deal in NWA XXX unclassified stones, and am open to any other type whether classified or not. Stones, irons, stony irons, it's all good to me. I'm all for horse trading, wheeling and dealing, and will pay cash for nice specimens. I've got a lot of material in my inventory and will buy or trade for any good quality, or in large quantity. Looking for ongoing supply and continued LONG TERM business. Treat me right on a deal, and you'll get the same in return and have a long term buyer. I'm a down to earth, fair guy and will work with you to make it a mutually beneficial deal. Talk to you soon... Contact me OFF-LIST at email: [EMAIL PROTECTED] Regards, Eric Wichman www.MeteoritesUSA.com www.MeteoriteWatch.com __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Santa Fe, NM Impact Crater article
Dear List, A recent article about the newly discovered Santa Fe impact crater: http://space.newscientist.com/article/mg19826604.800-roadside-crater-should-have-made-more-of-an-impact.html?feedId=space_rss20 Best, Dirk Ross...Tokyo __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Astrology/Astronomy
Mike All, Astrology is what it is, but your point below hits the nail right on the head. Dave -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Gilmer Sent: Tuesday, June 24, 2008 12:14 PM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Astrology/Astronomy Hi, My dearly-departed and beloved grandmother was an avid astrologer. I don't share her beliefs, which were admittedly from somewhere way out past left field. But she was a loving, kind, and INTELLIGENT woman with a masters degree. She just believed in a few goofy things like astrology behind closed doors. She didn't push her beliefs onto other people and rarely talked about it. In fact, us grandkids didn't even know she was an astrologer until after she passed away. At any rate, life is too short to paint groups of people with a broad stroke of the brush. Lumping a large group of people together, without knowing them, and then launching obscenities and insults at them is bigotry. Substitute the word astrologer, in that rant that started this, with any word that describes a racial or religious group and you'll see my meaning. I subscribe to this group to learn about meteoritics, not to listen to the bitter and hostile rants of a foul-mouthed person. And I don't appreciate someone calling my grandmother a *%#$! dimwit or nitwit or whatever it was. I'm sure I will get flamed for this, but it was not me who injected an off-topic rant into the list to start with. Regards and clear skies, MikeG . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com MySpace - http://www.myspace.com/fine_meteorites_4_sale .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Glass in meteorites
Have any studies been done on decay of glasses in meteorites into crystaline configurations? Is there a mesurable rate, or does it not happen? This story brought that to mind-- if impact-generated glasses in meteorites HAVE NOT decayed into crystaline material in 4 billion years, it's fairly good evidence that it won't happen in billions of years, as the story speculates. http://www.foxnews.com/story/0,2933,370864,00.html Scientists have made a breakthrough discovery in the bizarre properties of glass, which behaves at times like both a solid and a liquid. The finding could lead to aircraft that look like Wonder Woman's plane. Such planes could have wings of glass or something called metallic glass, rather than being totally invisible. The breakthrough involved solving the decades-old problem of just what glass is. It has been known that that despite its solid appearance, glass and gels are actually in a jammed state of matter somewhere between liquid and solid that moves very slowly. Like cars in a traffic jam, atoms in a glass are in something like suspended animation, unable to reach their destination because the route is blocked by their neighbors. So even though glass is a hard substance, it never quite becomes a proper solid, according to chemists and materials scientists. Work so far has concentrated on trying to understand the traffic jam, but now Paddy Royall from the University of Bristol in England, with colleagues in Canberra, Australia and Tokyo, has shown that glass fails to be a solid due to the special atomic structures that form in a glass when it cools. Icosahedron jams Some materials crystallize as they cool, arranging their atoms into a highly regular pattern called a lattice, Royall said, but although glass wants to be a crystal, as it cools the atoms become jammed in a nearly random arrangement, preventing it from forming a regular lattice. In the 1950s, Sir Charles Frank in the Physics Department at Bristol suggested that the arrangement of the jam should form what is known as an icosahedron, but at the time he was unable to prove it. An icosahedron is like a 3-D pentagon, and just as you cannot tile a floor with pentagons, you cannot fill 3-D space with icosahedrons, Royall explained. That is, you can't make a lattice out of pentagons. When it comes to glass, Frank thought, there is a competition between crystal formation and pentagons that prevents the construction of a crystal. If you cool a liquid down and it makes a lot of pentagons and the pentagons survive, the crystal cannot form. It turns out that Frank was right, Royall said, and his team proved this experimentally. You can't watch what happens to atoms as they cool because they are too small, so Royall and his colleagues used special particles called colloids that mimic atoms, but are large enough to be visible using state-of-the-art microscopy. The team cooled some down and watched what happened. What they found was that the gel these particles formed also wants to be a crystal, but it fails to become one due to the formation of icosahedra-like structures exactly as Frank had predicted. It is the formation of these structures that underlie jammed materials and explains why a glass is a glass and not a liquid or a solid, Royall said. The findings are detailed in the June 22 issue of the journal Nature Materials. The research was supported in part by a grant from Britain's Ministry of Education, Culture, Sports, Science and Technology as well as the Royal Society. Preventing jetliner disasters Knowing the structure formed by atoms as a glass cools represents a major breakthrough in the understanding of meta-stable materials and will allow further development of new strong yet light materials called metallic glasses, Royall said, which is already used to make some golf clubs. This stuff is generally shiny black in color, not transparent, due to having a lot of free electrons (think of mercury in an old thermometer). Metals normally crystallize when they cool, but stress builds up along the boundaries between crystals, which can lead to metal failure. For example, the world's first jetliner, the British built De Havilland Comet, fell out of the sky due to metal failure. When metals are be made to cool with the same internal structure as a glass and without crystal grain boundaries, they are less likely to fail, Royall said. Metallic glasses could be suitable for a whole range of products beyond golf clubs that need to be flexible such as aircraft wings and engine parts, he said. Glass is not what it seems Royall is part of a group of scientists who think that if you wait long enough, perhaps billions of years, all glass will eventually crystallize into a true solid. In other words, glass is not in an equilibrium state, he believes, although it appears that way to us during our limited lifetimes. This is not universally accepted, Royall told LiveScience. Our work will go some way to
Re: [meteorite-list] Glass in meteorites
Hi, Several years ago I ran onto an unusual chondrule in JaH 055 that looks like glass but it is forming in crystals. I have had various explanations presented to me and all involved Glass This might be On topic? If any one is up to taking a look and sharing their observations, I would greatly appreciate it. Just go to my Meteorite Times Micrograph Gallery http://www.meteorite.com/meteorite-gallery/meteorites-alpha_frame.htmand select alphabetical sorting, JaH 055, and then crystal structure. These shots were produced using incident (reflected light). Thanks, Tom Phillips In a message dated 6/24/2008 10:02:55 P.M. Mountain Daylight Time, [EMAIL PROTECTED] writes: Have any studies been done on decay of glasses in meteorites into crystaline configurations? Is there a mesurable rate, or does it not happen? This story brought that to mind-- if impact-generated glasses in meteorites HAVE NOT decayed into crystaline material in 4 billion years, it's fairly good evidence that it won't happen in billions of years, as the story speculates. http://www.foxnews.com/story/0,2933,370864,00.html Scientists have made a breakthrough discovery in the bizarre properties of glass, which behaves at times like both a solid and a liquid. The finding could lead to aircraft that look like Wonder Woman's plane. Such planes could have wings of glass or something called metallic glass, rather than being totally invisible. The breakthrough involved solving the decades-old problem of just what glass is. It has been known that that despite its solid appearance, glass and gels are actually in a jammed state of matter — somewhere between liquid and solid — that moves very slowly. Like cars in a traffic jam, atoms in a glass are in something like suspended animation, unable to reach their destination because the route is blocked by their neighbors. So even though glass is a hard substance, it never quite becomes a proper solid, according to chemists and materials scientists. Work so far has concentrated on trying to understand the traffic jam, but now Paddy Royall from the University of Bristol in England, with colleagues in Canberra, Australia and Tokyo, has shown that glass fails to be a solid due to the special atomic structures that form in a glass when it cools. Icosahedron jams Some materials crystallize as they cool, arranging their atoms into a highly regular pattern called a lattice, Royall said, but although glass wants to be a crystal, as it cools the atoms become jammed in a nearly random arrangement, preventing it from forming a regular lattice. In the 1950s, Sir Charles Frank in the Physics Department at Bristol suggested that the arrangement of the jam should form what is known as an icosahedron, but at the time he was unable to prove it. An icosahedron is like a 3-D pentagon, and just as you cannot tile a floor with pentagons, you cannot fill 3-D space with icosahedrons, Royall explained. That is, you can't make a lattice out of pentagons. When it comes to glass, Frank thought, there is a competition between crystal formation and pentagons that prevents the construction of a crystal. If you cool a liquid down and it makes a lot of pentagons and the pentagons survive, the crystal cannot form. It turns out that Frank was right, Royall said, and his team proved this experimentally. You can't watch what happens to atoms as they cool because they are too small, so Royall and his colleagues used special particles called colloids that mimic atoms, but are large enough to be visible using state-of-the-art microscopy. The team cooled some down and watched what happened. What they found was that the gel these particles formed also wants to be a crystal, but it fails to become one due to the formation of icosahedra-like structures — exactly as Frank had predicted. It is the formation of these structures that underlie jammed materials and explains why a glass is a glass and not a liquid — or a solid, Royall said. The findings are detailed in the June 22 issue of the journal Nature Materials. The research was supported in part by a grant from Britain's Ministry of Education, Culture, Sports, Science and Technology as well as the Royal Society. Preventing jetliner disasters Knowing the structure formed by atoms as a glass cools represents a major breakthrough in the understanding of meta-stable materials and will allow further development of new strong yet light materials called metallic glasses, Royall said, which is already used to make some golf clubs. This stuff is generally shiny black in color, not transparent, due to having a lot of free electrons (think of mercury in an old thermometer). Metals normally crystallize when they cool, but stress builds up along the boundaries between crystals, which can lead to metal failure. For example, the world's first jetliner, the British built De
[meteorite-list] Rocks from Space Picture of the Day - June 25, 2008
http://www.rocksfromspace.org/June_25_2008.html **Gas prices getting you down? Search AOL Autos for fuel-efficient used cars. (http://autos.aol.com/used?ncid=aolaut000507) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
