VS
Name
—
Ca[B₅O₈(OH)][B(OH)₃]·3H₂O
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Monoclinic
Crystal system
—
3
Mohs hardness
—
2
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
{001}, distinct; {100}, imperfect
Cleavage
—
P2_1/a
Space group
—
—
Structural group
—
Gow · Approved
IMA
—
1959
Named in
—
Colorless, white in aggregates; colorless in transmitted light
Typical colors
—
Ca · B · O · H
Elements
—