VS
Name
—
CaMn₃Mn(Si₅O₁₅)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
5.5–6.5
Mohs hardness
—
3.4–3.74
Specific gravity
—
White
Streak
—
Vitreous, somewhat pearly on cleavages
Luster
—
Perfect on {110} and {110}, (110) ^ (110) = 92.5 ±; good on {001}
Cleavage
—
P-1
Space group
—
Rhodonite
Structural group
—
Rdn · Approved
IMA
—
1819
Named in
—
Pink, Red, Brown
Typical colors
—
Ca · Mn · Si · O
Elements
—