Emmonsite (rare Te) Kay Robertson Coll.

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