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Bournonite & Calcite

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PCZ117681

Bournonite & Calcite

Description Tabs

Description
Locality: 
Sabinas Mine, Sombrerete, Zacatecas, Mexico
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 3 cm
Largest Crystal: 
1.50cm
Description

A number of reflective bournonite cogs scattered across the display face alongside is a lovely group of translucent dog tooth calcites.

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
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