Mineralogy Database

Sobotkite Mineral Data

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General Sobotkite Information

Help on Chemical  Formula: Chemical Formula: (K,Ca0.5)0.33(Mg,Al)3(Si3Al)O10(OH)2•1-5(H2O)
Help on Composition: Composition: Molecular Weight = 441.54 gm
   Potassium   0.89 %  K     1.07 % K2O
   Calcium     2.72 %  Ca    3.81 % CaO
   Magnesium  11.56 %  Mg   19.17 % MgO
   Aluminum   11.61 %  Al   21.94 % Al2O3
   Silicon    19.08 %  Si   40.82 % SiO2
   Hydrogen    1.60 %  H    14.28 % H2O
   Oxygen     52.54 %  O
             ______        ______ 
             100.00 %      101.09 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.1Ca0.33(Mg0.7)3(Al0.3)Si3AlO10(OH)2•2.5(H2O)
Help on Environment: Environment: Laterite deposit on ultra-basic rocks. Discredited in 1987 as being aluminum saponite
Help on IMA Status: IMA Status: Discredited IMA 1987 - Approved IMA 1976
Help on Locality: Locality: Mt. Sobotka, Godolow-Jordanow massif, Wiry, Lower Silesia, Poland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1976 for the locality.
Help on Synonym: Synonym: Discredited IMA 1987