Emmonsite (rare Te) Kay Robertson Coll.

Moctezuma Mine, Moctezuma, Sonora, Mexico
5.3 x 3.9 x 3.2 cm
Start Time: 03/20/2020 4:30:00 pm (CDT)
End Time: 03/26/2020 6:30:00 pm (CDT)
Auction Closed
Winning Bidder: cookieman

Item Description

Bright green emmonsite microcrystals and needles are clustered and scattered on the sculptural small cabinet matrix. Emmonsite is a rare hydrated Fe-tellurite found in the oxidized zones of tellurium-bearing ore bodies. Some of the finest examples of the species come from this extinct gold-tellurium mine, famous for a wealth of secondary tellurium minerals (MINDAT). Ex Kay Robertson Collection # 7988 and acquired from Ward's at the Rochester Symposium in the Spring of 1976. Kay is a prominent California collector, who specialized in European classics (see the article in the March-April, 2007 Mineralogical Record and the 50+ page article in the German Magazine "Mineralien-Welt" November-December 2017). A representative example of the rare species and locale. value d$200