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Chalcopyrite Calcite & Quartz

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SCH37423

Chalcopyrite Calcite & Quartz

Ex. Richard Kosnar

Description Tabs

Description
Locality: 
Silverton, Animas, San Juan County, Colorado, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 4 × 3.1 cm
Largest Crystal: 
1.10cm
Description

Superb, sharp, brassy gold colored twinned chalcopyrite is aesthetically set at the top of a sulphide matrix with long colorless quartz crystals, nicely spotted by calcite. Dozens of lesser chalcopyrite crystals are scattered over the whole specimen. One of the finest Colorado chalcopyrites from noted Colorado collector Richard Kosnar with label.

Mineral Data
What's on the rock

Chalcopyrite

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White
schani

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