VS
Name
—
Na₂B₅O₇(OH)₃·2H₂O
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Triclinic
Crystal system
—
3
Mohs hardness
—
2.053
Specific gravity
—
—
Streak
—
Vitreous to satiny
Luster
—
{110}, excellent; {010}, good; {100}, {126}, fair; {110}, {101}, poor
Cleavage
—
P-1
Space group
—
—
Structural group
—
Ezc · Grandfathered
IMA
—
1957
Named in
—
Colorless
Typical colors
—
Na · B · O · H
Elements
—