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Chalcopyrite & Siderite

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MGR784249

Chalcopyrite & Siderite

Description Tabs

Description
Locality: 
Kalwu Mine, Hezhang County, Bijie Prefecture, Guizhou Province, China (Peoples Republic)
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 3.9 × 3 cm
Description

Well known material - but this one stands out by crystal size and aesthetics. The huge main crystal is 29mm across and completely free-standing. It reminds to a triangle rotated upside down. The faces are highly lustrous, the termination is sharp and the color is this very best intense, iridescent gold. The faces show a very attractive texture, which expose new amazing details in each angle. One of the most aesthetic specimen I ever had from the locality. The Siderite formed this typical blades, sharp, dark brown and on satiny luster. A colorful, eye-catching composition of colors and minerals.

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