VS
Name
—
Na₂Ca₃B₅O₈(SO₄)₂(OH)₂Cl
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Monoclinic
Crystal system
—
4–5
Mohs hardness
—
2.753
Specific gravity
—
—
Streak
—
[Vitreous.]
Luster
—
{001}, perfect
Cleavage
—
C2/c
Space group
—
—
Structural group
—
Hdn · Grandfathered
IMA
—
1956
Named in
—
Colorless
Typical colors
—
Na · Ca · B · O · S · H · Cl
Elements
—