VS
Name
—
NaBSi₃O₈
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
6–7
Mohs hardness
—
2.7–2.78
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
Perfect on {001}
Cleavage
—
C-1
Space group
—
Feldspar
Structural group
—
Rm · Approved
IMA
—
1955
Named in
—
Colorless to tan or yellowish pink
Typical colors
—
Na · B · Si · O
Elements
—