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Quartz Sphalerite & Chalcopyrite

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ESM703518

Quartz Sphalerite & Chalcopyrite

Classic Locality

Description Tabs

Description
Locality: 
Cavnic Mine, Cavnic, Romania
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
6 × 13.5 × 7.5 cm
Description

Two generations of milky and smaller clear quartz crystals with black sphalerite and brassy chalcopyrite crystals on matrix

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Sphalerite

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0
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