VS
Name
—
Al₆(BO₃)₅F₃
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Hexagonal
Crystal system
—
6.5–7.5
Mohs hardness
—
3.29
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
—
Cleavage
—
P6_3/m
Space group
—
—
Structural group
—
Jer · Grandfathered
IMA
—
1883
Named in
—
Colorless, pale yellowish brown, pale to dark cornflower-blue; colorless to pale blue in transmitted light
Typical colors
—
Al · B · O · F
Elements
—