VS
Name
—
Ba₃Nb₆(Si₂O₇)₂O₁₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
6–7
Mohs hardness
—
4.16
Specific gravity
—
White
Streak
—
Adamantine
Luster
—
—
Cleavage
—
P-62m
Space group
—
—
Structural group
—
Bkv · Approved
IMA
—
1989
Named in
—
Brown to brownish red
Typical colors
—
Ba · Nb · Si · O
Elements
—