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Chalcopyrite Tetrahedrite & Quartz

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MGR652644

Chalcopyrite Tetrahedrite & Quartz

Description Tabs

Description
Locality: 
Boldut Mine, Cavnic, Maramureș County, Romania
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
11.9 × 8 × 3.2 cm
Description

Lustrous chalkopyrite and tertahedrite attractively set on milky, tiny quartz crystals. Nice contrast and in good condition damage-wise.

Mineral Data
What's on the rock

Chalcopyrite

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

Tetrahedrite

Formula: 
Cu6[Cu4(Fe,Zn)2]Sb4S13
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0

Quartz

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