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Chalcopyrite & Dolomite

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CR630634

Chalcopyrite & Dolomite

Classic Locality

Description Tabs

Description
Locality: 
Friedrich Wilhelm Mine, Biersdorf, Altenkirchen, Rhineland-Palatinate, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
14 × 11 × 3.5 cm
Description

A huge and old specimen of lustrous, tarnished chalcopyrite crystals partly covered with white dolomite crystals and gemmy quartz crystals (back side) from the famous Fritz Haller collection.

Mineral Data
What's on the rock

Chalcopyrite

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White