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Chalcopyrite Quartz & Calcite

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MGR924204

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 8.5 × 6.2 cm
Description

Colorful, glossy chalkopyrite crystals show excellent contrast to snowy white lustrous quartz crystals. Smaller crystals of first generation are partly covered with sparkling calcite - a very eye-catching and colorful sample from this famous locality.

Mineral Data
What's on the rock

Chalcopyrite

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

Quartz

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White