VS
Name
—
Cs₂NaMn²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
4
Mohs hardness
—
3.68
Specific gravity
—
—
Streak
—
Dull
Luster
—
{001}, perfect
Cleavage
—
P-1
Space group
—
Astrophyllite-Kupletskite
Structural group
—
Kpt-Cs · Approved
IMA
—
1970
Named in
—
Golden brown
Typical colors
—
Cs · Na · Mn · Ti · Si · O · H · F
Elements
—