Natrolite on Phonolite (ex Kay Robertson Collection)

Phonolite Quarry (Richter Quarry), Hammerunterwiesenthal, Oberwiesenthal, Niederschlag-Bärenstein District, Erzgebirge, Saxony, Germany
Small Cabinet, 6.7 x 4.2 x 4.2 cm
Start Time: 08/29/2019 6:45:00 pm (CDT)
End Time: 09/05/2019 6:45:00 pm (CDT)
Auction Closed
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Item Description

A great older specimen from Germany featuring attractive, prismatic white crystals (some have formed in radial "sprays") of Natrolite measuring 7 mm long sitting on Phonolite matrix. A very worthwhile piece to pick up for a fan of German minerals or worldwide Zeolites. Ex Kay Robertson Collection (#7863). 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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