Ferrokaersutite

General Information:
 Chemical Formula:
NaCa2(Fe++4Ti)Si6Al2O22(OH)2
 Composition:
(Molecular Weight = 998.89 gm)
Sodium 2.30 % Na
Calcium 8.02 % Ca
Titanium 4.79 % Ti
Aluminum 5.40 % Al
Iron 22.36 % Fe
Silicon 16.87 % Si
Hydrogen 0.20 % H 
Oxygen 40.04 % O 
 Empirical Formula:
NaCa2Fe3+4Ti(Si6Al2O23)(OH)2
 IMA Status:
Approved IMA 1978
Physical Properties:
 Cleavage:
[???] Good
 Color:
black.
 Density:
3.2
 Hardness:
5-6 - Between Apatite and Orthoclase
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