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Proustite Nickelskutterudite Nickeline & Native Arsenic

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CLB624571

Proustite Nickelskutterudite Nickeline & Native Arsenic

Classic Locality

Description Tabs

Description
Locality: 
Marienberg, Erzgebirge, Saxony, Germany
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 3.1 cm
Description

Deep cherry-red proustite (also with tiny perfect crystals in deep vugs - not pictured) on a mix of glossy, metallic-gray nickelskutterudite, coppery colored nickeline in the matrix and native arsenic (pseudomorph?).

Mineral Data
What's on the rock

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5

Nickelskutterudite

Formula: 
NiAs3-x
Strunz: 
2.EC.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Streak: 
Black
Type Locality: 
Schneeberg District, Erzgebirge, Saxony, Germany

Nickeline

Formula: 
NiAs
Strunz: 
2.CC.05
Crystal System: 
Hexagonal
Hardness: 
5.0 - 5.5

Arsenic

Formula: 
As
Strunz: 
1.CA.05
Crystal System: 
Trigonal
Hardness: 
3.5
Streak: 
Grey

Seller Information

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