Pseudomalachite (classic material) (ex Kay Robertson Collection)

Silberbrunnle Mine, Haigerach valley, Gengenbach, Black Forest, Baden-Wurttemberg, Germany
Miniature, 4.2 x 2.7 x 2.3 cm
Start Time: 09/20/2018 6:45:00 pm (CDT)
End Time: 09/27/2018 6:45:00 pm (CDT)
Auction Closed
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Item Description

A wonderful miniature sized specimen of the classic and desirable specimens of Pseudomalachite from the Silberbrunnle Mine in the Black Forest of Germany. This piece features lovely blue-green, flowing patches of this hard to find copper phosphate on oxidized matrix. This is hard to find material on the market today. Ex Kay Robertson Collection (#5598). 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).

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