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Galena Bournonite Seligmannite & Quartz

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CLB145866

Galena Bournonite Seligmannite & Quartz

ex coll. Wittig
Classic Locality

Description Tabs

Description
Locality: 
Huaron Mines, Pasco Department, Peru
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 7 × 6 cm
Description

Dark gray metallic crystals of the bournonite-seligmannite-series on gray galena crystals with rough surfaces and white quartz crystals. Shiny brassy pyrite in the galena matrix.

Mineral Data
What's on the rock

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Bournonite

Formula: 
PbCuSbS3
Strunz: 
2.GA.50
Hardness: 
2.5 - 3.0
Type Locality: 
Wheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Wadebridge District, Cornwall, England, UK

Seligmannite

Formula: 
PbCuAsS3
Strunz: 
2.GA.50
Hardness: 
3.0
Streak: 
Black
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

Quartz

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

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