VS
Name
—
Ca₂Mn²⁺Fe³⁺Si₅O₁₄(OH)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
6.5–7
Mohs hardness
—
3.452
Specific gravity
—
—
Streak
—
—
Luster
—
Perfect on {001}, less perfect on {010}, poor on {100}
Cleavage
—
P-1
Space group
—
Rhodonite
Structural group
—
Mbab · Approved
IMA
—
1966
Named in
—
Dark greenish black to yellowish green
Typical colors
—
Ca · Mn · Fe · Si · O · H
Elements
—