VS
Name
—
AlO(OH)
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Orthorhombic
Crystal system
—
6.5–7
Mohs hardness
—
3.2–3.5
Specific gravity
—
white
Streak
—
Adamantine, vitreous, pearly on cleavage faces
Luster
—
{010} perfect, {110} distinct, {100} in traces
Cleavage
—
Pbnm
Space group
—
Diaspore
Structural group
—
Dsp · Grandfathered
IMA
—
1801
Named in
—
White, Gray, Colorless, Brown, Pink
Typical colors
—
Al · O · H
Elements
—