Re: [meteorite-list] (AD) SOME METEORITES FOR SALE

2014-01-06 Thread steve arnold
Steve R. Arnold Elgin, Il 60120 On Sunday, January 5, 2014 7:31 PM, steve arnold stevenarnold60...@yahoo.com wrote: Hi list. I have a few meteorites for sale. I need to raise a little cash. 1. NWA 5142  165 GRAMS IN 2 ENDCUTS ( perfect chondrule) $ 200 2. GAO  33 GRAM COMPLETE STONE   

[meteorite-list] Tucson Show Guide 2014 on The Meteorite Exchange

2014-01-06 Thread Paul Harris
Happy New Year Everyone! A few of you have already submitted your Tucson information and we will begin updating our pages later today. http://www.meteorite.com/tucson/ Vendors and Visitors, please use the following form to submit your information.

[meteorite-list] What is more important in classification?

2014-01-06 Thread Jim Wooddell
Hi all! Just a few general questions... The involves a mount and a thin section. What is more important now-a-days in classification? This mainly revolves some questions I have that I am not sure how to ask...mainly to those that classify. If you have a million dollar Scanning Election

Re: [meteorite-list] What is more important in classification?

2014-01-06 Thread Carl Agee
Hi Jim, The electron microprobe is the workhorse for classifications, and most of this can be done simply with a probe mount (epoxy mounted sample that has been polished). In general you don't need a thin section or a petrographic microscope, although I always use a reflected light petrographic

Re: [meteorite-list] What is more important in classification?

2014-01-06 Thread Alan Rubin
I always want a doubly-polished thin section to do classification of stony meteorites. To determine the petrologic type of a chondrite, it is useful to gauge the degree of recrystallization (best done in transmitted light) and look for the size of plagioclase grains (which can be done in an

Re: [meteorite-list] What is more important in classification?

2014-01-06 Thread Michel FRANCO
Hi all, Thanks Carl for the clearest explanations ever engraved about meteorite analysis, to be etched on all web sites. Regards Michel IMCA 3869 -Message d'origine- De : meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] De la part de

Re: [meteorite-list] What is more important in classification?

2014-01-06 Thread Jim Wooddell
Hello Melinda, Alan and Carl, Thank you all very much for these explanations and the learning opportunity. You folks are great! I suppose I over worry about things when one person orders a mount and another a mount and thin section and another just a thin section. Sometimes a returned

[meteorite-list] NASA and Smithsonian to Host 10 Year Anniversary Events for Mars Rovers

2014-01-06 Thread Ron Baalke
January 6, 2014 Dwayne Brown Headquarters, Washington 202-358-1726 dwayne.c.br...@nasa.gov Guy Webster Jet Propulsion Laboratory, Pasadena, Calif. 818-354-6278 guy.webs...@jpl.nasa.gov Alison Mitchell Smithsonian's National Air and Space Museum, Washington 202-633-2376 mitchel...@si.edu

[meteorite-list] AD: New historic specimens available

2014-01-06 Thread Mike Bandli
Dear List Members, I have just finished updating my sales page to include many important witnessed falls. Most are ex. museum pieces with labels and catalog numbers: http://historicmeteorites.com/Sales.html Thanks for looking and please let me know if you would like to reserve a specimen!

[meteorite-list] Meteorite Picture of the Day

2014-01-06 Thread valparint
Today's Meteorite Picture of the Day: Toluca Contributed by: Gregor Hoeher http://www.tucsonmeteorites.com/mpodmain.asp __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com