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Quartz & Dolomite & Bournonite

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SHS889396

Quartz & Dolomite & Bournonite

Description Tabs

Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3.2 × 2.8 cm
Description

Nice quartz and dolomite with some bournonite

Mineral Data
What's on the rock

Quartz

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

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