VS
Name
—
Na₆Mg[B₆O₇(OH)₆]₄·10H₂O
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Monoclinic
Crystal system
—
3.5
Mohs hardness
—
1.905
Specific gravity
—
—
Streak
—
Vitreous, silky in aggregates
Luster
—
Perfect on {100}, {102}; poor on {010}
Cleavage
—
P2_1/m
Space group
—
—
Structural group
—
Riv · Approved
IMA
—
1966
Named in
—
Colorless, white
Typical colors
—
Na · Mg · B · O · H
Elements
—