VS
Name
—
Ca₂Mn²⁺Fe³⁺Si₄O₁₂(OH)·2H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
5.5
Mohs hardness
—
3.02
Specific gravity
—
Pale orange-brown
Streak
—
Vitreous
Luster
—
Good on {001}
Cleavage
—
P1
Space group
—
—
Structural group
—
Hub · Approved
IMA
—
2000
Named in
—
Pale to dark brown
Typical colors
—
Ca · Mn · Fe · Si · O · H
Elements
—