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Bournonite Arsenopyrite & Calcite

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PFK635963

Bournonite Arsenopyrite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Madem-Lakkos Mine, Chalkidiki Prefecture, Central Macedonia, Greece
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 4.4 × 4 cm
Description

Bournonite is one of the hardest to get and most desirable, sulphides from Greece. This is a good example combined with a few other minerals including crystals of arsenopyrite, calcite & more.

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

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Calcite

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

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