VS
Name
—
Na₄(Ce,Sr)₂TiSi₈O₁₈(O,OH,F)₆·5H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
3–4
Mohs hardness
—
2.76
Specific gravity
—
—
Streak
—
Vitreous to silky, resinous or dull in some specimens
Luster
—
Perfect {100}; less perfect {001}
Cleavage
—
C2/c
Space group
—
—
Structural group
—
Sei-Ce · Approved
IMA
—
1993
Named in
—
Bright yellow, pinkish yellow, or cream
Typical colors
—
Na · Ce · Sr · Ti · Si · O · H · F
Elements
—