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Quartz Sphalerite & Chalcopyrite

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KFT153940

Quartz Sphalerite & Chalcopyrite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.3 × 4 × 4.3 cm
Description

Very esthetic grown specimen. 2 Generations of quartz is grown on sphalerite withy tiny chalcopyrite. Not free of contacts.

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