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Berthierite With Dolomite & Antimony

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BMM672226

Berthierite With Dolomite & Antimony

Description Tabs

Description
Locality: 
Herja, Baia Mare, Romania
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5 × 3 cm
Description

Radial spray of high metallic glossy berthierite in combination with spherical dolomite and highly glossy dark antimonite. The dolomite ball has grown on the berthierite and on the dolomite you can find the antimony. An undamaged floater piece from an old collection, bought in Herja in 1970 (collection card).

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Antimony

Formula: 
Sb
Strunz: 
1.CA.05
Crystal System: 
Trigonal
Hardness: 
3.0 - 3.5
Colour: 
Tin-white
Streak: 
Grey
Type Locality: 
Sala Silver Mine, Sala, Västmanland, Sweden
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