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Pyrargyrite On Galena

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Pyrargyrite On Galena

Description Tabs

Description
Locality: 
Wheal Herland, Gwinnear, Cornwall, United Kingdom
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 1 cm
Description

Massive pyrargyrite in galena.

J. Trantom Collecton, ex. David Baker.

Mineral Data
What's on the rock

Pyrargyrite

Formula: 
Ag3SbS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal - Ditrigonal Pyramidal
Hardness: 
2.5

Galena

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