Meyerhofferite (rare borate) (ex Kay Robertson Collection)

Item Description

I would say that nearly half of all the reported localities for Meyerhofferite are in California (Inyo County and Kern County specifically). This piece is a beautiful old time specimen of this rare borate featuring fine white prismatic crystals in semi-parallel growth free of matrix. If you collect Borates, thumbnails, rarities or minerals of California, don't miss out on this attractive specimen. Ex Kay Robertson Collection with a lovely old hand-written label from an unknown collection. 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).