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Sphalerite Var Marmatite

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SHS990955

Sphalerite Var Marmatite

Description Tabs

Description
Locality: 
St Christoph Mine, Breitenbrunn, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.6 × 1.9 cm
Description

So called christophite, a black varity from sphalerite better known as marmatite

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