VS
Name
—
MgTiO₃
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Hexagonal
Crystal system
—
5–6
Mohs hardness
—
3.79–4.2
Specific gravity
—
Purplish brown
Streak
—
Submetallic
Luster
—
{1011}
Cleavage
—
R-3
Space group
—
Corundum
Structural group
—
Gk · Grandfathered
IMA
—
1893
Named in
—
Black, less commonly ruby-red; in transmitted light, brownish to purplish red; gray in reflected light
Typical colors
—
Mg · Ti · O
Elements
—