VS
Name
—
Mn²⁺Fe³⁺₂O₄
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Cubic
Crystal system
—
5.5–6.5
Mohs hardness
—
4.76
Specific gravity
—
Brown
Streak
—
Metallic, splendent to semimetallic, dull
Luster
—
{111}, probably a parting
Cleavage
—
Fd3m
Space group
—
Spinel
Structural group
—
Jcb · Approved
IMA
—
1869
Named in
—
Black to brownish black; grayish white with olive tint in reflected light, with brown internal reflections
Typical colors
—
Mn · Fe · O
Elements
—