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Sphalerite Var Marmatite & Calcite

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NST742518

Sphalerite Var Marmatite & Calcite

Description Tabs

Description
Locality: 
Trepča, Mitrovica District, Kosovo
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 2.5 cm
Description

Highly lustrous, twinned black Sphalerite var Marmatite from well known Trepca Mine. Comes with a mid 20th century handwritten label.

Mineral Data
What's on the rock

Sphalerite

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

Marmatite

Variety Of: 

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Hardness: 
3.5 - 4.0
Formula: 
(Zn,Fe)S
Hardness: 
0.0
Colour: 
Black

Calcite

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