Mineralogy Database

Hydromolysite Mineral Data

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General Hydromolysite Information

Help on Chemical  Formula: Chemical Formula: FeCl3•6(H2O)
Help on Composition: Composition: Molecular Weight = 270.30 gm
   Iron      20.66 %  Fe   29.54 % Fe2O3
   Hydrogen   4.47 %  H    39.99 % H2O
   Chlorine  39.35 %  Cl   39.35 % Cl
               -   %   Cl   -8.88 % -O=Cl2   
   Oxygen    35.52 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+Cl3•6(H2O)
Help on Environment: Environment: Sea water alteration of pyrite.
Help on IMA Status: IMA Status: Discredited IMA 1968
Help on Locality: Locality: Rio Marina, Elba, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1965 for the composition.
Help on Name Pronunciation: Name Pronunciation: Hydromolysite + Pronunciation Say HYDROMOLYSITE
Help on Synonym: Synonym: Discredited
  ICSD 30453
  PDF 33-645