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Bournonite

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MGR926435

Bournonite

Rare Mineral

Description Tabs

Description
Locality: 
Viboras Mine, Machacamarca, Saavedra Province, Potosi Department, Bolivia
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.3 × 2.6 cm
Description

So this is really an impressive bournonite - highly lustrous - all faces look like mirros, free-standing, amazing texture and on same high quality at the reverse. A mayor piece for this rare mineral!

Mineral Data
What's on the rock

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