Hi William, First question: are you sure it's a meteorite? Very few meteorites scratch glass, and those that do do so only weakly. Quartz, in contrast, will really dig in to glass. I haven't tried it with a ureilite, but (as you surmise) the polycrystalline nanodiamond content might be high enough that you could scratch glass with a ureilite. --Rob
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of William Feek Sent: Tuesday, May 06, 2014 8:58 AM To: [email protected] Subject: [meteorite-list] Potential Ureilite Hi All, I have a 186g whole NWAX stone, thus it's unclassified, which I purchased solely because it looked like a Ureilite. The first thing I did was drop it in a jar of nitric to clean it up a bit, just kidding, actually the first thing was to see if it scratched a microscope slide, which it did with ease. Question, is my glass test grounds enough to feel pretty confident that the stone is a Ureilite? William ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
