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Chalcostibite & Zinkenite

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GMN97131

Chalcostibite & Zinkenite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 4.5 × 1.5 cm
Description

Nice crystals consist of rare Cu-Sb-sulphosalts Chalcostibite ,and zinkenite on calcite-sulphide matrix. Chalcostibite forms black-grey tabular crystals, the zinckenite forms needles between the chalcostibite crystals. The specimen has all over groups of this two minerals.

Mineral Data
What's on the rock

Chalcostibite

Formula: 
CuSbS2
Strunz: 
2.HA.05
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Streak: 
black
Type Locality: 
Graf Jost-Christian Mine, Wolfsberg, Stolberg, Harz, Saxony-Anhalt, Germany

Zinkenite

Formula: 
Pb9Sb22S42
Strunz: 
2.JB.35a
Crystal System: 
Hexagonal
Hardness: 
3.0 - 3.5
Type Locality: 
Graf Jost-Christian Mine, Wolfsberg, Stolberg, Harz, Saxony-Anhalt, Germany

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