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Bismuthinite

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Bismuthinite

Description Tabs

Description
Locality: 
South Crofty Mine, Pool, Carn Brea, Cornwall, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 6 × 2 cm
Description

Quartz matrix rich in crystalline bismuthinite.

From The 290 Fathom Level, East Pool Section, South Crofty Mine.

Very good example for this location.

Mineral Data
What's on the rock

Bismuthinite

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