Hello Mark, All, Those squiggly lines are what Nininger coined "lawrencite," a corrosive "disease" that occurs primarily in the presence of terrestrial salts. While the term is fairly well-recognized, it generally applies to meteorites which experience accelerated oxidation even years after having been found, having spent long periods of time in unfavorable climates. The slice does indeed look like Toluca, and it might be a fine specimen if refinished, but good luck with preserving it - maybe Bill Mason might have a word on this. That said, there are no troilite inclusions visible in the slice. Regards, Jason
On Tue, Aug 4, 2009 at 2:57 PM, Kashuba<[email protected]> wrote: > Mark, List, > > It looks to me like an etched iron meteorite slice that has been clear > coated and is rusting. Corrosion will boil up and worm its way around under > coatings. Some Toluca have prominent troilite. None is obvious in this > slice but it still could very well be a Toluca. Maybe someone read a > description somewhere that mentioned troilite, saw the Widmanstätten pattern > and figured that is what the "crossed lines" are. You might pick it up > cheap, refinish it and pray. > > Regards, > > - John > > John Kashuba > Ontario, California > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Mark > Grossman > Sent: Tuesday, August 04, 2009 1:37 PM > To: [email protected] > Subject: [meteorite-list] Question on Toluca Sample that I came across on > ebay > > Would be interested on any comments on this Toluca sample that I came across > > on ebay. According to the seller, the sample was purchased from a collector > > in Spain named "Ceruda" and the troilite is "the crossed lines on the > specimen." > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180387460024&ssPageName=S > TRK:MEWAX:IT > > Thanks. > > Mark Grossman > > > ______________________________________________ > http://www.meteoritecentral.com > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list > > > ______________________________________________ > http://www.meteoritecentral.com > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list > ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
