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Tetrahedrite & Calcite

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ESM772313

Tetrahedrite & Calcite

Description Tabs

Description
Locality: 
Boldut Mine, Cavnic, Maramureș County, Romania
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 8 × 4 cm
Description

Lustrous metallic tetrahedrite crystals on white calcite crystals and minor quartz crystals and pyrite crystals

Mineral Data
What's on the rock

Tetrahedrite

Formula: 
Cu6[Cu4(Fe,Zn)2]Sb4S13
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0

Calcite

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