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VS
Hausmannite
Hausmannite
Name
—
Mn²⁺Mn³⁺₂O₄
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Tetragonal
Crystal system
—
5.5
Mohs hardness
—
4.84
Specific gravity
—
Dark reddish brown
Streak
—
Submetallic
Luster
—
{001}, perfect; {112} and {011}, indistinct
Cleavage
—
I4_1/amd
Space group
—
Spinel
Structural group
—
Hsm · Grandfathered
IMA
—
1828
Named in
—
Brown, Black
Typical colors
—
Mn · O
Elements
—