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Calcite Chalcopyrite Siderite & Sphalerite

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JNM592386

Calcite Chalcopyrite Siderite & Sphalerite

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.4 × 6.4 × 4.7 cm
Description

Sculptural cluster of golden chalcopyrites, a brown siderite aggregate and three black-included calcite balls overgrown with sphalerites. No significant damage.

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Mineral Data
What's on the rock

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

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0
Video

Black Calcite, Sphalerite, Chalcopyrite & Siderite

JN Minerals

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