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Realgar & Calcite

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CLB575319

Realgar & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Rollenberg Railway Tunnel, Bruchsal, Karlsruhe Region, Baden-Württemberg, Germany
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.2 × 6 × 2.6 cm
Description

Rare sample of red realgar with calcite on matrix from the Rollenberg tunnel - a locality that provided specimen only for a very short period during its construction.

Mineral Data
What's on the rock

Realgar

Formula: 
As4S4
Strunz: 
2.FA.15a
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0

Calcite

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

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