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Quartz With Manganoan Calcite & Chalcopyrite & Tetrahedrite

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KOV778705

Quartz With Manganoan Calcite & Chalcopyrite & Tetrahedrite

Classic Locality

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 4.8 × 3.6 cm
Weight: 
75.30gr
Description

Very nice specimen with gradually transparent Quartz on one side and Mn-Calcite on the other. Tetrahedryte, Pyrite & Chalkopyrite grown on the Mn-Calcite mass. Very nice piece!

Mineral Data
What's on the rock

Quartz

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

Manganoan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Mn)CO3
Hardness: 
0.0

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