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Millerite & Chalcopyrite On Dolomite

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CLB181072

Millerite & Chalcopyrite On Dolomite

ex collection G. Hartung
Classic Locality

Description Tabs

Description
Locality: 
Zollverein Mine, Essen, North Rhine - Westphalia, Germany
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.2 × 4.2 cm
Largest Crystal: 
2.00cm
Description

Very delicate, hairfine millerite crystals and one iridescent blueish chalcopyrite on dolomite crystals. With original Hartung label.

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

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