VS
Name
—
Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃F
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
7.5
Mohs hardness
—
3.02
Specific gravity
—
white
Streak
—
vitreous
Luster
—
—
Cleavage
—
R3m
Space group
—
Tourmaline
Structural group
—
Fld · Approved
IMA
—
1976
Named in
—
Pink, Green, Brown, Blue
Typical colors
—
Ca · Li · Al · Si · O · B · H · F
Elements
—