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Berthierite & Calcite & Boulangerite

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ESM785264

Berthierite & Calcite & Boulangerite

Description Tabs

Description
Locality: 
Baia Mare, Maramureș County, Romania
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.5 × 3.5 cm
Description

A spray of acicular berthierite crystals with dark grey calcite rhombs due to boulangerite inclusions

Mineral Data
What's on the rock

Berthierite

Formula: 
FeSb2S4
Strunz: 
2.HA.20
Crystal System: 
Orthorhombic
Hardness: 
2.0 - 3.0
Type Locality: 
Chazelles-Haut (Chazelle), Mercoeur, Haute-Loire, Auvergne, France

Calcite

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

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