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Boulangerite & Sphalerite

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SHS1039498

Boulangerite & Sphalerite

Description Tabs

Description
Locality: 
Ludwig Shaft, Himmelfahrt Mine, Freiberg, Mittelsachsen, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.2 × 1.5 cm
Description

Boulangerite and sphalerite on matrix

Mineral Data
What's on the rock

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0