Mineralogy Database

Bendadaite Mineral Data

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General Bendadaite Information

Help on Chemical  Formula: Chemical Formula: Fe++Fe+++2(AsO4)2(OH)2•4H2O
Help on Composition: Composition: Molecular Weight = 551.46 gm
   Iron      30.38 %  Fe   13.03 % FeO / 28.96 % Fe2O3
   Arsenic   27.17 %  As   41.68 % As2O5
   Hydrogen   1.83 %  H    16.33 % H2O
   Oxygen    40.62 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+Fe3+2(AsO4)2(OH)2•4(H2O)
Help on Environment: Environment: Whitmoreite group
Help on IMA Status: IMA Status: Proposed IMA 2007 (Dana # Added)
Help on Locality: Locality: Bendada near Guarda, province Beira Alta, central Portugal Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality
Help on Synonym: Synonym: IMA1998-053a