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Gersdorffite With Annabergite

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QRI686153

Gersdorffite With Annabergite

Former collection Burger (Switzerland)
Classic Locality

Description Tabs

Description
Locality: 
Richelsdorf District, Wildeck, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 1 × 1 cm
Description

Unusual specimen of gersdorffite from Richelsdorf, Germany. This is an overall massive specimen of fine grained gersdorffite, mixed with other sulfides (mostly pyrite). One side of the specimen features apple green tuffs of annabergite, the most classic alteration product of gersdorffite.
Classic locality, these specimens have become increasingly scarce nowadays.
Former collection Burger (Switzerland), pre-WWII and relabelled in modern times.

Previous labels supplied (not photographed)
Mineral Data
What's on the rock

Gersdorffite

Formula: 
NiAsS
Strunz: 
2.EB.25
Crystal System: 
Isometric
Hardness: 
5.5
Type Locality: 
Zinkwand, Obertalbach valley, Schladminger Tauern, Schladming, Styria, Austria

Annabergite

Formula: 
Ni3(AsO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.5
Type Locality: 
Teichgräber Flacher vein, Teichgräber deep adit, Kippenhain Mine (Kippenhayn Mine), Schreckenberg, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirge, Saxony, Germany

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