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Bournonite

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SCH28805

Bournonite

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Description
Locality: 
Wheal Anna Maria, Mawnan, Cornwall, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.3 × 5.2 × 3.2 cm
Description

A fairly nice British bournonite. The specimen has numerous cogwheels, the biggest is 5mm, mostly 3-4mm.

Very minor damage is scattered although there are some good crystals and damage looks mostly as not crystallized bournonite.

A rare mine from Cornwall.

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
schani

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