VS
Name
—
BeAl₂O₄
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Orthorhombic
Crystal system
—
8.5
Mohs hardness
—
3.75
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
Distinct on {110}, imperfect on {010}, poor on {001}
Cleavage
—
Pbnm
Space group
—
Olivine
Structural group
—
Cbrl · Grandfathered
IMA
—
1789
Named in
—
Various shades of green, yellow, brownish to greenish black
Typical colors
—
Be · Al · O
Elements
—