VS
Name
—
K(AlSi₃O₈)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
6–6.5
Mohs hardness
—
2.54–2.57
Specific gravity
—
white
Streak
—
Vitreous, pearly on cleavage
Luster
—
Perfect on {001} and {010}, intersecting at ~90°; partings on {100}, {110}, {110}, and {201}
Cleavage
—
C-1
Space group
—
Feldspar
Structural group
—
Mcc · Grandfathered
IMA
—
1830
Named in
—
Green, White, Pink, Gray, Brown
Typical colors
—
K · Al · Si · O
Elements
—