VS
Name
—
NaCaB₅O₇(OH)₄·3H₂O
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Monoclinic
Crystal system
—
3
Mohs hardness
—
2.13–2.14
Specific gravity
—
white
Streak
—
Vitreous, may be satiny
Luster
—
On {110}, perfect
Cleavage
—
P2_1/c
Space group
—
—
Structural group
—
Pbr · Grandfathered
IMA
—
1929
Named in
—
White, Colorless, Yellow
Typical colors
—
Na · Ca · B · O · H
Elements
—