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Millerite & Calcite

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ESM850659

Millerite & Calcite

Description Tabs

Description
Locality: 
Niederberg Mine, Neukirchen-Vluyn, Ruhr, North Rhine - Westphalia, Germany
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 9 × 2.5 cm
Description

Clusters of brassy millerite needles on colorless calcite rhombs

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