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Calcite & Boulangerite

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CFL962591

Calcite & Boulangerite

Description Tabs

Description
Locality: 
Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Museum (18cm plus)
Size: 
18 × 12 × 6 cm
Description

Very nice specimen of calcite crystals included with boulangerite, associated with sphalerite.  Purchased in 2004.  The calcite crystals are much darker than shown in the photos, to almost black.

Mineral Data
What's on the rock

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

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