Mineralogy Database

Ewaldite Mineral Data

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General Ewaldite Information

Help on Chemical  Formula: Chemical Formula: (Ba,Sr)(Ca,Na,Y,Ce)(CO3)2
Help on Composition: Composition: Molecular Weight = 294.76 gm
   Barium     34.94 %  Ba   39.01 % BaO
   Sodium      2.34 %  Na    3.15 % Na2O
   Strontium   7.43 %  Sr    8.79 % SrO
   Calcium     6.80 %  Ca    9.51 % CaO
   Cerium      4.75 %  Ce    5.57 % Ce2O3
   Yttrium     3.02 %  Y     3.83 % Y2O3
   Carbon      8.15 %  C    29.86 % CO2
   Oxygen     32.57 %  O
             ______        ______ 
             100.00 %       99.73 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba0.75Sr0.25Ca0.5Na0.3Y0.1Ce0.1(CO3)2
Help on Environment: Environment: Eocene-aged lacustrine deposits.
Help on IMA Status: IMA Status: Approved IMA 1971
Help on Locality: Locality: Green River Formation, Sweetwater County, Wyoming, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Paul P. Ewald (1888-1985), German crystallographer, founder of Acta Crystallographica, and professor at Brooklyn Polytechnical Institute, New, York.
Help on Name Pronunciation: Name Pronunciation: Ewaldite Say EWALDITE
Help on Synonym: Synonym: ICSD 27421
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