VS
Name
—
Fe²⁺(WO₄)
Formula
—
Mineral Species
Entry type
—
Tungstates
Chemical class
—
Monoclinic
Crystal system
—
4–4.5
Mohs hardness
—
7.58
Specific gravity
—
Brownish black to black
Streak
—
Submetallic to metallic adamantine
Luster
—
{010}, perfect; {100} and {102}, partings
Cleavage
—
P2/c
Space group
—
Wolframite
Structural group
—
Feb · Grandfathered
IMA
—
1863
Named in
—
Black, Brown
Typical colors
—
Fe · W · O
Elements
—