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Calcite & Boulangerite

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MGR946792

Calcite & Boulangerite

Classic Locality

Description Tabs

Description
Locality: 
Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
15.7 × 11.2 × 6.5 cm
Description

Remarkable specimen from Romania featuring several botryoidal clusters of calcite with boulangerite inclusions at one side of the piece. The borderline inbetween the bright and the dark colour gives a nice contrast to the specimen.

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