VS
Name
—
Na₇Be₂(Si₁₅Al₃)O₃₉(F,OH)₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
6
Mohs hardness
—
2.57
Specific gravity
—
—
Streak
—
Silky
Luster
—
Distinct on {1010}
Cleavage
—
P-3m1
Space group
—
Leifite
Structural group
—
Lf · Approved
IMA
—
1915
Named in
—
Colorless
Typical colors
—
Na · Be · Si · Al · O · F · H
Elements
—