VS
Name
—
Mn²⁺₆AlSi₆O₁₈(OH)₃
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
5.5
Mohs hardness
—
3.63
Specific gravity
—
Dull green
Streak
—
Vitreous
Luster
—
Perfect on {012}
Cleavage
—
P-1
Space group
—
—
Structural group
—
Bno · Approved
IMA
—
2014
Named in
—
Dull green
Typical colors
—
Mn · Al · Si · O · H
Elements
—