Tenorite with Malachite and Azurite (ex Kay Robertson Collection)

Item Description

Please Note: This piece is labeled as coming from "Jensbach a/Donnersberg, Palatinate, Pfalz", but I can't find a listing for anything matching these names. I'm not 100% certain as to which mine or locality this is referring, so I'm simply leaving it at Rhineland-Palatinate, Germany. If anybody out there has any insight as to where this piece is from, please let us know. The piece features black, semi-metallic Tenorite spots which are mixed with contrasting mint green Malachite a few spots of blue Azurite on Quartz porphyry matrix. Unusual and certainly Ex Kay Robertson Collection (#4756). 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).