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Wolframite

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MEX95057

Wolframite

With Antique Label

Description Tabs

Description
Locality: 
South Crofty Mine, Pool, Carn Brea, Cornwall, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 5.5 × 3.6 cm
Largest Crystal: 
3.00cm
Description

Massive tungsten ore with a lot of wolframite crystals from cornwall. In the paragensis is quartz, too.

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