Mineralogy Database

Nealite-(H2O) Mineral Data

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General Nealite-(H2O) Information

Help on Chemical  Formula: Chemical Formula: Pb4Fe++(As+++O3)2Cl4•2(H2O)
Help on Composition: Composition: Molecular Weight = 1,308.33 gm
   Iron       4.27 %  Fe    5.49 % FeO
   Arsenic   11.45 %  As   15.12 % As2O3
   Hydrogen   0.31 %  H     2.75 % H2O
   Lead      63.35 %  Pb   68.24 % PbO
   Chlorine  10.84 %  Cl   10.84 % Cl
               -   %   Cl   -2.45 % -O=Cl2   
   Oxygen     9.78 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb4Fe2+(AsO3)2Cl4•2(H2O)
Help on Environment: Environment: Weathered lead slag.
Help on IMA Status: IMA Status: Not Approved IMA 1980
Help on Locality: Locality: Laurion, Greece. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Neal Yedlin (1908-1977), U. S. Mineralogist, who discovered the mineral.
Help on Name Pronunciation: Name Pronunciation: Nealite-(H2O) Say NEALITE-(H2O)