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Wolframite

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JYK1149295

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Description
Locality: 
Stavoren-Mute Fides, Marble Hall, Ephraim Mogale Local Municipality, Sekhukhune District Municipality,, Limpopo Province, South Africa
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 5 cm
Description

Wolframite group from the Stavoren-Mute Fides, Limpopo, South Africa. 

 

Mineral Data
What's on the rock

Wolframite

Synonym Of: 

Hübnerite

Formula: 
MnWO4
Strunz: 
4.DB.30
Hardness: 
4.0 - 4.5

Ferberite

Formula: 
FeWO4
Strunz: 
4.DB.30
Hardness: 
4.0 - 4.5
Formula: 

(Fe2+)WO4 to (Mn2+)WO4

Crystal System: 
Monoclinic
Hardness: 
4 - 4.5
Colour: 
Greyish-black
Streak: 
Reddish Brown

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