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Chalcostibite & Siderite

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TRN776227

Chalcostibite & Siderite

Description Tabs

Description
Locality: 
Hautes-Alpes, Provence-Alpes-Cote d'Azur, France
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
2 × 2 × 5 cm
Largest Crystal: 
2.00cm
Description

Single euhedral and terminated crystal of the rare sulfosalt Chalcostibite in a cluster of siderite crystals.  Chalcostibite is approximately 2 cm long and siderite crystals are up to 1 cm. Aesthetic piece that displays well.

Mineral Data
What's on the rock

Chalcostibite

Formula: 
CuSbS2
Strunz: 
2.HA.05
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Streak: 
black
Type Locality: 
Graf Jost-Christian Mine, Wolfsberg, Stolberg, Harz, Saxony-Anhalt, Germany

Siderite

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

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