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Chalcopyrite & Siderite

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CLB214266

Chalcopyrite & Siderite

ex collection Uwe Nielsen
Classic Locality

Description Tabs

Description
Locality: 
Georg Mine, Willroth, Altenkirchen, Rhineland-Palatinate, Germany
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.3 × 2.7 cm
Largest Crystal: 
1.00cm
Description

Very beautiful, golden-brassy, lustrous chalcopyrite crystals with a little nest of siderite crystals peeking through. A classical specimen like this is almost impossible to find nowadays.

Mineral Data
What's on the rock

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

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