Millerite (RARE - old) Kay Robertson Coll.

Item Description

Millerite specimens are VERY RARE from the historic silver mines at St Andreasberg. Tiny, very bright, iridescent bronzy-brassy needles are festooned on the sculptural, undulating, tabular blocky calcite rhomb matrix. See the Mineralogical Record St. Andreasberg Special Issue, May-June, 2017, Vol. 48, No. 3., Pages 370-371. Most purported specimens have found to be either cubanite or stibnite. Detailed analysis would be required to determine the species. Ex Kay Robertson Collection # 4168 and acquired from Krantz on a European trip in 1964. It comes with a faded and torn century old label. 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). Rare and rich millerite.