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Jamesonite With Boulangerite

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PCZ642124

Jamesonite With Boulangerite

Description Tabs

Description
Locality: 
Tresungers Mine, Port Isaac, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.5 × 4.5 cm
Description

Jamesonite with minor boulangerite (arrowed) from a rarely offered Cornish locality.

Mineral Data
What's on the rock

Jamesonite

Formula: 
Pb4FeSb6S14
Strunz: 
2.HB.15
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
Cornwall, England, UK

Boulangerite

Formula: 
Pb5Sb4S11
Strunz: 
2.HC.15
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Colour: 
Lead grey
Streak: 
Brownish
Type Locality: 
Molières, Gard, Languedoc-Roussillon, France
Peter Crozier Minerals