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Sphalerite Bournonite & Calcite

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ESM716438

Sphalerite Bournonite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Turt Mine, Negrești-Oas, Satu Mare County, Romania
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
5 × 17 × 16 cm
Description

Dark brown sphalerite crystals with metallic bournonite crystals on calcite crystals

Mineral Data
What's on the rock

Sphalerite

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

Bournonite

Formula: 
PbCuSbS3
Strunz: 
2.GA.50
Hardness: 
2.5 - 3.0
Type Locality: 
Wheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Wadebridge District, Cornwall, England, UK

Calcite

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