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Chalcocite & Siderite

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CLB545521

Chalcocite & Siderite

Classic Locality

Description Tabs

Description
Locality: 
Groundhog Mine, Grant County, New Mexico, United States of America
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.7 × 6.5 × 4 cm
Description

Chalcocite crystals are rare and sought after. This specimen is full of them and it comes from a classic American locality.

Mineral Data
What's on the rock

Chalcocite

Formula: 
Cu2S
Strunz: 
2.BA.05
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0

Siderite

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

Seller Information

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