Mineralogy Database

Schwertmannite Mineral Data

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General Schwertmannite Information

Help on Chemical  Formula: Chemical Formula: Fe+++16O16(OH)12(SO4)2
Help on Composition: Composition: Molecular Weight = 1,545.76 gm
   Iron      57.81 %  Fe   82.65 % Fe2O3
   Hydrogen   0.78 %  H     6.99 % H2O
   Sulfur     4.15 %  S    10.36 % SO3
   Oxygen    37.26 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+16O16(OH)12(SO4)2
Help on Environment: Environment: As a secondary precipitate forming crusts on material inundated by acidic (pH 3.2) drainage water.
Help on IMA Status: IMA Status: Approved IMA 1994
Help on Locality: Locality: Pyhasalmi sulfide mine, Province or Oulu, Finland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: In honor of Udo Schwertmann (1922 - ).
Help on Name Pronunciation: Name Pronunciation: Schwertmannite + Pronunciation Say SCHWERTMANNITE
Help on Synonym: Synonym: IMA1990-006