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Quartz & Chalcopyrite

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MGR817894

Quartz & Chalcopyrite

Classic Locality

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.4 × 6 × 3.4 cm
Description

Sharp terminated, milky quartz crystals attractively set on chalkopyrite - chalkopyrite is covered with a neraly black layer and so you can see this attractive black/white contrast. No significant damages to report.

Mineral Data
What's on the rock

Quartz

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

Chalcopyrite

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