Microcline on blue Albite (ex Kay Robertson Collection)

Item Description

This locality is best known for its gem blue Topaz crystals and purple Herderites, and good quality crystallized Feldpsars are not very common. This piece is a gorgeous display specimen featuring a 2.8 cm, sharp, well-formed, blocky, off-white color crystal of Microcline (possibly twinned?) sitting on lovely blue bladed Albite (var: Cleavelandite). Most Albite is white or colorless, so to find blue crystals is certainly rare. A showy and three-dimensional display piece and fine quality. Ex Kay Robertson Collection (#9485). 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).