Hainite

General Information:
 Chemical Formula:
Na2Ca4(Ti,Zr,Mn,Fe)2(Si2O7)F4
 Composition:
(Molecular Weight = 570.80 gm)
Sodium 8.06 % Na
Calcium 28.09 % Ca
Zirconium 7.99 % Zr
Titanium 9.23 % Ti
Manganese 2.89 % Mn
Iron 0.98 % Fe
Silicon 9.84 % Si
Oxygen 19.62 % O 
Fluorine 13.31 % F 
 Empirical Formula:
Na2Ca4Ti1.1Zr0.5Mn2+0.3Fe2+0.1(Si2O7)F4
Physical Properties:
 Cleavage:
[???] Perfect
 Color:
honey yellow or wine yellow.
 Density:
3.148
 Diaphaniety:
Translucent
 Hardness:
5 - Apatite
 Luster:
Adamantine
 Streak:
white
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