VS
Name
—
Ca[B(OH)₄]₂·2H₂O
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
1.84–1.87
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
Two k elongation, perfect; another ⊥ elongation, imperfect
Cleavage
—
P2/a
Space group
—
—
Structural group
—
Hhb · Approved
IMA
—
1977
Named in
—
Colorless; develops a pale blue tarnish on exposure
Typical colors
—
Ca · B · O · H
Elements
—