Wolframite - Definition

Wolframite
Wolframite
General
Category	Mineral
Chemical formula	(Fe,Mn)WO4
Identification
Colour	Black to dark grey
Crystal habit	Tabular crystals, sometimse prismatic
Crystal system	Monoclinic
Cleavage	Good
Fracture	Uneven to rough
Mohs Scale hardness	4-4.5
Luster	Submetalli
Refractive index	Opaque
Pleochroism	None
Streak	Black
Specific gravity	7
Fusibility	?
Solubility	?
Major varieties
None

Wolframite (Fe,Mn)WO₄, is a mineral that is the intermediate between Ferberite and Huebernite. Along with Scheelite, the Wolframite series are the most important tungsten ore. China reportedly has the world's largest supply of tungsten ore.

See also

• List of minerals

This article about a specific mineral, mineraloid, or type of rock is a stub. You can help Wikipedia by expanding it (http://www.wordiq.com/definition/Wolframite).