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Quartz Calcite & Chalcopyrite

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RBR606665

Quartz Calcite & Chalcopyrite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 8 × 4.5 cm
Description

This is an amazing specimen with perfect quartz resting on high lustrouse chalcopyrite. The chalcopyrite is developed as huge crystals with very fine color and termination. The quartz shows an amazing luster and termination, the clearity is very fine. But the best is the calcite that covers only half of the quartz-crystals and makes this specimen even more attractive. In very good condition!

Mineral Data
What's on the rock

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

Chalcopyrite

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

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