VS
Name
—
Na₆(Na )Ba₂Ti₂Nb₂(Si₂O₇)₄(PO₄)₂O₄(OH)₂F₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
3.5–4
Mohs hardness
—
3.47–3.5
Specific gravity
—
—
Streak
—
Pearly
Luster
—
Perfect on {001}
Cleavage
—
P-1
Space group
—
Seidozerite-Lamprophyllite
Structural group
—
Bma · Approved
IMA
—
1973
Named in
—
Pale yellow
Typical colors
—
Na · Ba · Ti · Nb · Si · O · P · H · F
Elements
—