VS
Name
—
Ca₅(SiO₄)₁.₅(SO₄)₁.₅F
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
4.5
Mohs hardness
—
3.03
Specific gravity
—
White with weak bluish tint
Streak
—
Vitreous to greasy
Luster
—
—
Cleavage
—
P6_3/m
Space group
—
Apatite
Structural group
—
Fel · Approved
IMA
—
1987
Named in
—
Blue to pale bluish green; colorless in thin section
Typical colors
—
Ca · Si · O · S · F
Elements
—