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Sphalerite & Calcite & Boulangerite

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ESM785309

Sphalerite & Calcite & Boulangerite

Description Tabs

Description
Locality: 
Stan Terg Mine, Trepča, Mitrovica District, Kosovo
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
14 × 7 × 4 cm
Description

A lustrous black sphalerite crystal on flattened grey calcite rhombs and a different generation of calcite crystals on the reverse side partially dark grey due to boulangerite inclusions

Mineral Data
What's on the rock

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Calcite

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

Boulangerite

Formula: 
Pb5Sb4S11
Strunz: 
2.HC.15
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Colour: 
Lead grey
Streak: 
Brownish
Type Locality: 
Molières, Gard, Languedoc-Roussillon, France