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Bournonite

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CR1048996

Bournonite

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Description
Locality: 
Machacamarca Mine, Machacamarca, Saavedra Province, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.5 × 2 cm
Largest Crystal: 
1.60cm
Description

For overall quality, this is a very good Bournonite from Bolivia.

There was a find of this relatively rare lead copper antimony sulfosalt about 8 years ago at Machacamarca, and this piece is one of the better quality pieces found, especially for a crystal this size.

This piece features an attractive, sharp, doubly-terminated, tabular, metallic, silvery-grey color "cogwheel"-shaped crystals on matrix

This material was found in very small quantities from Bolivia in such fine cogwheels.

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

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$10
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Start 24 May 18:00
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Shipping Information

Postage Area Price
Germany
6
Europe
9
USA, Rest of World
$12

Bid History

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