Satimolite

General Information:
 Chemical Formula:
KNa2Al4(B2O5)3Cl3·13(H2O)
 Composition:
(Molecular Weight = 838.41 gm)
Potassium 4.66 % K 
Sodium 5.48 % Na
Aluminum 12.87 % Al
Boron 7.74 % B 
Hydrogen 3.13 % H 
Chlorine 12.69 % Cl
Oxygen 53.43 % O 
 Empirical Formula:
KNa2Al4(B2O5)3Cl3·13(H2O)
 Environment:
In a salt deposit.
 IMA Status:
Approved IMA 1969
 Locality:
Chelkar, Kazakhstan.
Physical Properties:
 Cleavage:
None
 Color:
chalky white.
 Density:
2.1
 Habits:
Nodular - Tuberose forms having irregular protuberances over the surface., ,
 Hardness:
1-2 - Between Talc and Gypsum
 Luster:
Earthy (Dull)
 Streak:
white
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