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Quartz & Chalcopyrite

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MGR673334

Quartz & Chalcopyrite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Museum (18cm plus)
Size: 
21 × 13.6 × 9.6 cm
Description

Two intergrown hemispheres on sharp terminated, glossy, milky quartz crystals. Intense golden chalkopyrite is scattered all over. The assemble looks more tri-dimensional in person and the size makes it really very impressive. 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