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Danburite & Chalcopyrite

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CR655248

Danburite & Chalcopyrite

Description Tabs

Description
Locality: 
Aurora Mine, Charcas, Charcas Municipality, San Luis Potosi, Mexico
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 10 × 5 cm
Largest Crystal: 
3.50cm
Description

This impressive, 360-degree radial hedgehog of glassy, transparent to translucent danburite prisms, to 3.5 cm, is peppered with sharp, metallic to coated chalcopyrite crystals.

Rare and very attractive, old-time material from the Armin Wendland collection.

Mineral Data
What's on the rock

Danburite

Formula: 
CaB2Si2O8
Strunz: 
9.FA.65
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Streak: 
White
Type Locality: 
Danbury, Fairfield Co., Connecticut, USA

Chalcopyrite

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