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Bismuthinite Wittichenite & Djurleite

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PJM41879

Bismuthinite Wittichenite & Djurleite

Description Tabs

Description
Locality: 
Cattlegrid Mine, Mount Gunson, South Australia, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.8 × 3.2 × 3 cm
Description

A shallow cavity in red sanstone has been lined with clear quartz crystals on to which a 1.1cm spray of bismuthinite has formed together with metallic blue djurleite, gray sugary to crystalline silvery wittichenite and some minor dull gray chalcocite crystals. This material dates back to the late 1970's when the Cattlegrid Mine at Mount Gunson was operated by Mount Gunson Mines Pty Ltd, who ceased operations in 1985.

Mineral Data
What's on the rock

Bismuthinite

Formula: 
Bi2S3
Strunz: 
2.DB.05
Hardness: 
2.0 - 2.5
Streak: 
Lead-gray

Wittichenite

Formula: 
Cu3BiS3
Strunz: 
2.GA.20
Crystal System: 
Orthorhombic Prismatic crystals or masses
Hardness: 
2.0 - 3.0
Streak: 
Black
Type Locality: 
Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany

Djurleite

Formula: 
Cu31S16
Strunz: 
2.BA.05
Hardness: 
2.5 - 3.0
Type Locality: 
Barranca de Cobre (Copper Canyon), Mun. de Chihuahua, Chihuahua, Mexico
Earthstones Australia

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