Mineralogy Database

Natrobetpakdalite Mineral Data

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General Natrobetpakdalite Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca)3Fe+++2(As2Mo6O28)•15(H2O)
Help on Composition: Composition: Molecular Weight = 1,641.45 gm
   Sodium       2.80 %  Na    3.78 % Na2O
   Calcium      2.44 %  Ca    3.42 % CaO
   Iron         6.80 %  Fe    9.73 % Fe2O3
   Molybdenum  35.07 %  Mo   52.61 % MoO3
   Arsenic      9.13 %  As   14.00 % As2O5
   Hydrogen     1.84 %  H    16.46 % H2O
   Oxygen      41.91 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2CaFe3+2As2Mo6O28•15(H2O)
Help on Environment: Environment: In the zone of oxidation of a molybdenum deposit.
Help on IMA Status: IMA Status: Approved IMA 1971
Help on Locality: Locality: Kazakhstan (?) Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the chemistry and similarity to betpakdalite.
Help on Synonym: Synonym: Sodium betpakdalite - Renamed to Natrobetpakdalite by Mineralogical Record, v39 (2008), p131