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Sphalerite & Calcite

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MGR1112386

Description Tabs

Description
Locality: 
Trepča, Mitrovica District, Kosovo
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
12.9 × 12.6 × 6 cm
Description

Fine matrix specimen from Kosovo which is evenly sprinkled in dark but lustrous crystals of sphalerite. Additionally there are several calcite crystals attached too.

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