Mineralogy Database

Walstromite Mineral Data

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General Walstromite Information

Help on Chemical  Formula: Chemical Formula: BaCa2Si3O9
Help on Composition: Composition: Molecular Weight = 445.73 gm
   Barium   30.81 %  Ba   34.40 % BaO
   Calcium  17.98 %  Ca   25.16 % CaO
   Silicon  18.90 %  Si   40.44 % SiO2
   Oxygen   32.31 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaCa2Si3O9
Help on Environment: Environment: Metamorphosed metasediments.
Help on IMA Status: IMA Status: Approved IMA 1965
Help on Locality: Locality: Big Creek - Rush Creek sanbornite deposit, 5 miles NE of Trimmer, Fresno Co., California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Robert E. Walstrom (1920-), American mineral collector, who discovered the mineral.
Help on Name Pronunciation: Name Pronunciation: Walstromite + Pronunciation Say WALSTROMITE