Mineralogy Database

Barium-zinc-alumopharmacosiderite Mineral Data

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General Barium-zinc-alumopharmacosiderite Information

Help on Chemical  Formula: Chemical Formula: (Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)3•5(H2O)
Help on Composition: Composition: Molecular Weight = 689.30 gm
   Potassium   0.28 %  K     0.34 % K2O
   Barium      3.98 %  Ba    4.45 % BaO
   Aluminum   11.74 %  Al   22.19 % Al2O3
   Zinc        1.90 %  Zn    2.36 % ZnO
   Iron        8.10 %  Fe   11.58 % Fe2O3
   Copper      0.46 %  Cu    0.58 % CuO
   Arsenic    32.61 %  As   50.02 % As2O5
   Hydrogen    1.46 %  H    13.07 % H2O
   Oxygen     39.46 %  O
             ______        ______ 
             100.00 %      104.58 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 0.5(Ba0.4)0.5(K0.1)0.5(Zn0.4)0.5(Cu0.1)Al3Fe3+(AsO4)3�5(H2O)
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Ba and Zn analog of pharmacosiderite.