VS
Name
—
Ba(Al,Ti)(PO₄)(OH,O)F
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
3.5
Mohs hardness
—
4.42
Specific gravity
—
White
Streak
—
—
Luster
—
On {011}, good; a parting on {010}
Cleavage
—
P2_1/n
Space group
—
Laueite
Structural group
—
Cut · Approved
IMA
—
1978
Named in
—
Bright yellow-green to nickel-green; colorless in thin section
Typical colors
—
Ba · Al · Ti · P · O · H · F
Elements
—