Mineralogy Database

Chlorothionite Mineral Data

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General Chlorothionite Information

Help on Chemical Formula: Chemical Formula: K2Cu(SO4)Cl2
Help on Composition: Composition: Molecular Weight = 308.71 gm
   Potassium  25.33 %  K    30.51 % K2O
   Copper     20.58 %  Cu   25.77 % CuO
   Sulfur     10.39 %  S    25.93 % SO3
   Chlorine   22.97 %  Cl   22.97 % Cl
                -   %   Cl   -5.18 % -O=Cl2   
   Oxygen     20.73 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2Cu(SO4)Cl2
Help on Environment: Environment: Sublimates around volcanic fumaroles.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1872
Help on Locality: Locality: Vesuvius, Campania, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for chlorine and sulfur in the composition.
Help on Synonym: Synonym: ICSD 22364
  PDF 29-998