VS
Name
—
CaB₃O₄(OH)₃·H₂O
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Monoclinic
Crystal system
—
4–4.5
Mohs hardness
—
2.423
Specific gravity
—
white
Streak
—
Vitreous to adamantine
Luster
—
On {010}, perfect; on {001}, distinct
Cleavage
—
P2_1/a
Space group
—
—
Structural group
—
Cole · Grandfathered
IMA
—
1883
Named in
—
Colorless, White, Gray, Yellow
Typical colors
—
Ca · B · O · H
Elements
—