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Millerite

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NST707438

Millerite

Description Tabs

Description
Locality: 
Zollverein Mine, Essen, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 11 × 2 cm
Description

A nice example of Millerite from the old Zollverein coal mine in Germany. The flat-lying needles reach 1.5 cm. The matrix also hosts dozens of mm-size Siderites and shows remnants of brown coal.

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