VS
Name
—
NaMn²⁺₂Si₃O₈(OH)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
5–5.5
Mohs hardness
—
3.34
Specific gravity
—
White
Streak
—
Vitreous to greasy; fibrous aggregates are dull to silky
Luster
—
Perfect on {001}, {100}
Cleavage
—
P-1
Space group
—
Pectolite
Structural group
—
Srd · Approved
IMA
—
1931
Named in
—
Rose-red, orange, salmon-pink, light pink, colorless, brown, black; colorless in thin section
Typical colors
—
Na · Mn · Si · O · H
Elements
—