Paranatisite

General Information:
 Chemical Formula:
Na2(TiO)SiO4
 Composition:
(Molecular Weight = 201.94 gm)
Sodium 22.77 % Na
Titanium 23.71 % Ti
Silicon 13.91 % Si
Oxygen 39.61 % O 
 Empirical Formula:
Na2TiO(SiO4)
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
None
 Color:
yellow, orange brown, or orange.
 Density:
3.12
 Diaphaniety:
Transparent to Translucent
 Hardness:
5 - Apatite
 Luster:
Vitreous - Adamantine
 Streak:
white
More details...