VS
Name
—
Ba₂Ti₂(Na₂ )Ti(Si₂O₇)₂(OH)₂(H₂O)₂O₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
3.3
Specific gravity
—
—
Streak
—
Resinous, pearly
Luster
—
{001}, good
Cleavage
—
A2/m
Space group
—
Seidozerite-Lamprophyllite
Structural group
—
Dde · Approved
IMA
—
1987
Named in
—
Pale pinkish gray
Typical colors
—
Ba · Ti · Na · Si · O · H
Elements
—