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Chalcopyrite Sphalerite & Siderite

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SCH49726

Chalcopyrite Sphalerite & Siderite

Description Tabs

Description
Locality: 
Troya Mine, Mutiloa, Guipúzcoa, Basque Country, Spain
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.5 × 1 cm
Description

A matrix of brownish siderite crystals is host to several dark gemmy sphalerite crystals and a group of chalcopyrite. Old specimen from beginnings of 1990's.

Mineral Data
What's on the rock

Chalcopyrite

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

Sphalerite

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

Siderite

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

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