VS
Name
—
LiAlSi₄O₁₀
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
6–6.5
Mohs hardness
—
2.41–2.42
Specific gravity
—
White
Streak
—
Vitreous, pearly on {001}
Luster
—
Perfect on {001}, poor on {201}; (001) ^ (201) = 38.5 ±
Cleavage
—
P2/c
Space group
—
—
Structural group
—
Ptl · Grandfathered
IMA
—
1800
Named in
—
Colorless, White, Gray, Pink
Typical colors
—
Li · Al · Si · O
Elements
—