Sanidine (classic material) (ex Kay Robertson Collection)

Drachenfels, Kuonigswinter, Siebengebirge, North Rhine-Westphalia, Germany (Type Locality)
Small Cabinet, 9.3 x 4.8 x 3.3 cm
Start Time: 02/22/2018 6:45:00 pm (CST)
End Time: 03/01/2018 6:45:28 pm (CST)
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Item Description

A rarely seen example of the Feldspar species Sanidine from the type locality in Germany. The piece features a few sharp, well-formed, beige colored monoclinic crystal measuring up to 3.6 cm in trachyte matrix. If you collect worldwide feldspars, or German minerals in general, this is a must have as one rarely finds such a showy and balanced example of Sanidine from Drachenfels on the market these days. Ex Kay Robertson Collection (#6507). 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).

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