VS
Name
—
NaCaB₅O₆(OH)₆·5H₂O
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Triclinic
Crystal system
—
2.5
Mohs hardness
—
1.955
Specific gravity
—
white
Streak
—
Vitreous; silky or satiny in fibrous aggregates
Luster
—
On {010}, perfect; on {110}, good; on {110}, poor
Cleavage
—
P-1
Space group
—
—
Structural group
—
Ulx · Grandfathered
IMA
—
1850
Named in
—
White, Colorless
Typical colors
—
Na · Ca · B · O · H
Elements
—