VS
Name
—
Na(AlSi₃O₈)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
6–6.5
Mohs hardness
—
2.6–2.65
Specific gravity
—
White
Streak
—
Vitreous, typically pearly on cleavages
Luster
—
Perfect on {001}, very good on {010}, imperfect on {110}
Cleavage
—
C-1
Space group
—
Feldspar
Structural group
—
Ab · Grandfathered
IMA
—
1815
Named in
—
White, Colorless, Gray
Typical colors
—
Na · Al · Si · O
Elements
—