VS
Name
—
K₂NaCa₂TiSi₇O₁₈(OH)O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
6
Mohs hardness
—
2.82–2.9
Specific gravity
—
—
Streak
—
Vitreous on cleavages
Luster
—
Perfect on {010}, imperfect on {110}; (010) ^ (110) = 131.5 ±
Cleavage
—
P-1
Space group
—
—
Structural group
—
Tnk · Approved
IMA
—
1965
Named in
—
White, colorless, light yellow, light pink
Typical colors
—
K · Na · Ca · Ti · Si · O · H
Elements
—