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Bournonite & Quartz

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ESM878767

Bournonite & Quartz

Description Tabs

Description
Locality: 
Příbram District, Central Bohemian Region, Czech Republic
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5 × 3 cm
Description

Lustrous metallic bournonite crystals on matrix

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White