Lollingite & Dyscrasite on Native Arsenic (old classic) Kay Robertson Coll.

Item Description

A rich and excellent old-time combination ore specimen from the historic mines at St. Andreasberg. The hefty botryoidal matrix of native arsenic hosts botryoids strikingly covered with scintillating iridescent lollingite microcrystals. Dyscrasite coatings cover most of the remaining native arsenic botryoids on this impressive two-sided specimen. Ex Kay Robertson Collection # 1750 and acquired from Scott Williams in July, 1960 in Long Beach. It comes with several other labels. 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). Kay assembled an important suite of classics and rarities from this famed district. See the Mineralogical Record St. Andreasberg Special Issue, May-June, 2017, Vol. 48, No. 3. A remarkable old-time combination from St Andreasberg. The last mine closed in 1910.