VS
Name
—
Mn²⁺₅Si₈O₂₀(OH)₂·7H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
2.18
Specific gravity
—
—
Streak
—
Silky
Luster
—
—
Cleavage
—
C2/m
Space group
—
Palygorskite, Clay
Structural group
—
Yof · Approved
IMA
—
1974
Named in
—
Pink, purple, violet, beige, reddish to orange-brown, dark brown, bronze; in transmitted light, pale maroon
Typical colors
—
Mn · Si · O · H
Elements
—