Mineralogy Database

Slawsonite Mineral Data

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General Slawsonite Information

Help on Chemical  Formula: Chemical Formula: (Sr,Ca)Al2Si2O8
Help on Composition: Composition: Molecular Weight = 309.65 gm
   Strontium  22.64 %  Sr   26.77 % SrO
   Calcium     1.29 %  Ca    1.81 % CaO
   Aluminum   15.68 %  Al   29.64 % Al2O3
   Silicon    19.05 %  Si   40.75 % SiO2
   Oxygen     41.34 %  O
             ______        ______ 
             100.00 %       98.97 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sr0.8Ca0.1Al1.8Si2.1O8
Help on Environment: Environment: In pectolite veinlets in metamorphosed xenoliths.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: From the Wallowa Mountains, Wallowa County, Oregon, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Chester Baker Slawson (1898-1964, Mineralogist AT THE University of Michigan, Ann Arbor, Michigan, USA.
Help on Name Pronunciation: Name Pronunciation: Slawsonite + Pronunciation Say SLAWSONITE
Help on Synonym: Synonym: ICSD 100141
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