VS
Name
—
Mn²⁺(Sb⁵⁺,Fe³⁺)O₃
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Hexagonal
Crystal system
—
4
Mohs hardness
—
5.24
Specific gravity
—
Pale rouge-red to cherry-red
Streak
—
Brilliant
Luster
—
{0001}, perfect, perhaps a parting
Cleavage
—
R-3
Space group
—
Corundum
Structural group
—
Mlsb · Approved
IMA
—
1893
Named in
—
Coal-black; deep blood-red in transmitted light
Typical colors
—
Mn · Sb · Fe · O
Elements
—