Hello Bernd, Frank, Mike, List,
Many thanks for the info about terrestrial troilite. Here (at work) I only had a small reference textbook on mineralogy. Home I have some 2000+ mineral books and (almost all) journals, among which those books you are mentioning. It may also well happen that I have some troilite specimen in my extended mineral collection.
Sorry then for having perhaps asked an obvious question. This at least shows that our List works well and efficiently.
Thank you all again for the pertinent documentation. The troilite problem remains interesting in many aspects.
Cordially,
Zelimir
A 17:57 04/01/05 +0000, vous avez écrit :
Zelimir wrote
"I fully agree. Indeed, after a rapid checking through some textbooks on hand, I did not find any terrestrial occurrence for troilite. Does anyone know for some ?"
Hi Zelmir here is what I found:
In "Handbook of Mineralogy" 1990 by Anthony et. al. p. 538
Occurrence: Found in serpentine (Del Norte Co., California, USA); with Fe-Cu-Ni sulfides in a layered ultramafic intrusive (Sally Malay deposit, Australia); and as nodules in meteorites.
Distribution: From the Alta mine, Del Norte Co., California, USA. In the Wannaway Fe-Ni-Cu deposit, and at the Sally Malay Cu-Ni deposit, 120 km north of Halls Creek, Western Australia. From Disco Island and the Ilimaussaq Intrusion, southern Greenland. In many meteorites.
I see from Charon Cisneros list at Mineralogical Research she has it for sale from the Alta mine. Here is the url; <http://www.minresco.com/syst/t.htm>
Mike
-- Mike Jensen IMCA 4264 Bill Jensen IMCA 2359 Jensen Meteorites 16730 E Ada PL Aurora, CO 80017-3137 303-337-4361
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