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Millerite Calcite & Pyrite

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ESM676028

Millerite Calcite & Pyrite

Description Tabs

Description
Locality: 
Donnerkuhle Quarry, Hagen, Arnsberg, North Rhine - Westphalia, Germany
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
1.8 × 5 × 2 cm
Description

Pyrite crystals perched on millerite needles on calcite

Mineral Data
What's on the rock

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5