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Chalcopyrite & Siderite & Tetrahedrite

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CFL769314

Chalcopyrite & Siderite & Tetrahedrite

Description Tabs

Description
Locality: 
Nayong County, Bijie, Guizhou Province, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.5 × 2.5 cm
Description

Superb specimen of flashy octahedral chalcopyrite crystals, up to 1 cm on edge, associated with platy siderite crystals, up to 1.5 cm in size, and small tetrahedrite crystals on matrix.  The chalcopyrite crystals have striated surfaces.  Sawn base.

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

Tetrahedrite

Formula: 
Cu6[Cu4(Fe,Zn)2]Sb4S13
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0

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