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Rhodochrosite With Chalcopyrite

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PDM745449

Rhodochrosite With Chalcopyrite

Description Tabs

Description
Locality: 
Emma Mine, Butte, Silver Bow County, Montana, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 3.1 × 2.2 cm
Largest Crystal: 
1.80cm
Description

Sharp pastel-pink rhodochrosite rhombohedra to 18 mm across, attractively interpenetrated and spotted by golden groups of chalcopyrite that gives it a superb and characteristic accent. Fine and highly sought-after material from the famous Emma Mine at Butte.

Old material that was acquired in 1977 by René Virlet to US collector Jessie Hardman (with label).

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

Chalcopyrite

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

Seller Information

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