VS
Name
—
(Na, )₂(Ti⁴⁺,Fe³⁺)₄(Si₂O₆)₂(Si₃AlO₁₀)(OH)₄·H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
5
Mohs hardness
—
2.77
Specific gravity
—
White
Streak
—
Vitreous to pearly
Luster
—
Perfect {001}; indistinct {010}
Cleavage
—
P1
Space group
—
—
Structural group
—
Pvgd · Approved
IMA
—
2002
Named in
—
Colorless to white
Typical colors
—
Na · Ti · Fe · Si · O · Al · H
Elements
—