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Wolframite In Quartz

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CLB157713

Wolframite In Quartz

With Antique Label

Description Tabs

Description
Locality: 
Zinnwald, Saxony, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7 × 2.8 cm
Description

Shiny black wolframite crystals in quartz matrix.
Zinnwald lies directly on the border of Germany and the Czech Republic.
Comes with an antique label (must be end of the 19th century), pasted into a smaller box (this is not wrong or unusual for old collections).

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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