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Wolframite

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PDM739422

Wolframite

Description Tabs

Description
Locality: 
Rwanda
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.1 × 4 × 2.8 cm
Description

Subparallel aggregate of black-brown wolframite, crystallized all around and with a cleaved face.

Ex Gabriel Fauvart collection.

Mr Fauvart was working in the port of Antwerp, and he had access to ore shipments, coming to Antwerp, from all around the world.

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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