VS
Name
—
Na₃Mn²⁺₃Ti₀.₂₅(Si₈O₂₀)(OH)₂·10H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
3
Mohs hardness
—
2.32–2.39
Specific gravity
—
Yellow
Streak
—
Vitreous, may be silky
Luster
—
Perfect on {100}, {010}, and {001}
Cleavage
—
C2/m
Space group
—
—
Structural group
—
Rai · Approved
IMA
—
1972
Named in
—
Gold, brown, reddish brown, yellow, tan, rose, lavender, bronze
Typical colors
—
Na · Mn · Ti · Si · O · H
Elements
—