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Topazolite Millerite & Calcite

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CLB173882

Topazolite Millerite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Wurlitz, Oberkotzau, Hof, Upper Franconia, Bavaria, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.3 × 5.4 × 4.5 cm
Description

Super-interesting specimen with lots of beautiful, sharp, brownish green topazolite crystals. Another highlight is the long acicular millerite crystal (one of several), on which a group of tiny calcite crystals reside.

Mineral Data
What's on the rock

Topazolite

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Hardness: 
0.0

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

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