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Gersdorffite & Millerite

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JYJ199079

Gersdorffite & Millerite

Description Tabs

Description
Locality: 
Ramsbeck, Bestwig, Arnsberg, North Rhine - Westphalia, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 0.8 cm
Description

Grey metallic gersdorffite crystals associated with yellow metallic millerite.

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

Millerite

Formula: 
NiS
Strunz: 
2.CC.20
Crystal System: 
Trigonal
Hardness: 
3.0 - 3.5
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic