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Billingsleyite With Famatinite & Chalcopyrite

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LGM537519

Billingsleyite With Famatinite & Chalcopyrite

Ex Ring collection, Munich, Germany
Rare Mineral

Description Tabs

Description
Locality: 
Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.7 × 1.7 × 0.7 cm
Weight: 
2.00gr
Description

Billingsleyite is a rare Ag-As sulfosalt. The specimen hosts blackish-gray billingsleyite crystals, accompanied by stained chalcopyrite, arsenopyrite and famatimite in white quartz matrix.

Mineral Data
What's on the rock

Billingsleyite

Formula: 
Ag7AsS6
Strunz: 
2.KB.05
Hardness: 
2.5
Type Locality: 
North Lily Mine (International Smelting Company; Wicklow), East Tintic District, East Tintic Mts, Utah Co., Utah, USA

Famatinite

Formula: 
Cu3SbS4
Strunz: 
2.KA.10
Hardness: 
3.0 - 4.0
Streak: 
Black
Type Locality: 
Sierra de Famatina, La Rioja, Argentina

Chalcopyrite

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

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