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Wolframite On Quartz

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PCZ192735

Wolframite On Quartz

Description Tabs

Description
Locality: 
Yaogangxian Mine, Hunan Province, China (Peoples Republic)
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.8 × 3 cm
Description

Hi All, this auction is part of a series of ‘Clear-out Minerals’ Clear-out auctions. This specimen and the majority of others on offer this have a starting price 50% or more lower than in all previous auctions. Happy bidding. An aesthetic association of wolframite crystals (up to 2.6 cm) with quartz crystals (up to 1.8 cm).

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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