Wolframite
Chemical Formula	(Fe,Mn)WO4
Species	Oxides & Hydroxides
Crystal System	Monoclinic
Mohs Scale	4
Specific Gravity	7-7.5
Color	Grayish to brownish black
Streak	Reddish brown
Luster	Sub-Metallic
Diaphaneity	Opaque
Cleavage	Perfect 010
Fracture	Irregular/Uneven
Crystal Habit：Tabular to short prismatic crystals
Geological Setting：High-temperature hydrothermal veins; greisen, granitic pegmatites; alluvial and eluvial deposits.