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Wolframite

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QRI816413

Wolframite

With Antique Label

Description Tabs

Description
Locality: 
Yaogangxian Mine, Hunan Province, China (Peoples Republic)
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.9 × 4.6 × 3.1 cm
Weight: 
198.00gr
Description

Historical, complex aggregate of striated wolframite crystals. Good lustre for the wolframite, which could even be cleaned further (I did not)
This specimen is an oldtimer, labeled as China and coming with two juxtapposed old labels.

My take is that this could even be from some classic European locality. It comes from the Burger collection, which dates back to pre-1950 and has been labelled in modern times.

Pasted Label
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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