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Wolframite

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PDM1029828

Wolframite

Description Tabs

Description
Locality: 
Lutsiro, Sebeya River, Kabaya District, Western Province, Rwanda
Class: 
Single Crystal
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.8 × 5 × 4.6 cm
Weight: 
364.00gr
Description

Black, heavy, flattened crystal of wolframite with some lustrous faces. Wolframite samples from Lutsiro are extremely rare in collections. Collected in the middle 1960’s by Professor Albert Delvaux (1919-1998), it comes with his handwritten label.

Combine specimens to reduce shipping costs!.

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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