Mineralogy Database

Wallkilldellite Mineral Data

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General Wallkilldellite Information

Help on Chemical  Formula: Chemical Formula: Ca4Mn++6As+++++4O16(OH)8•18(H2O)
Help on Composition: Composition: Molecular Weight = 1,505.95 gm
   Calcium    10.65 %  Ca   14.89 % CaO
   Manganese  21.89 %  Mn   28.26 % MnO
   Arsenic    19.90 %  As   30.52 % As2O5
   Hydrogen    2.94 %  H    26.32 % H2O
   Oxygen     44.62 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca4Mn2+6As4O16(OH)8•18(H2O)
Help on Environment: Environment: Massive granular franklinite-willemite ore from a metamorphosed stratiform zinc orebody.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Sterling Hill, Ogdensburg, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the dell of the Wallkill River, in which both the Sterling Hill and the Franklin deposits were discovered.
Help on Name Pronunciation: Name Pronunciation: Wallkilldellite + Pronunciation Say WALLKILLDELLITE