Mineralogy Database

Petarasite Mineral Data

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General Petarasite Information

Help on Chemical  Formula: Chemical Formula: Na5Zr2Si6O18(Cl,OH)•2(H2O)
Help on Composition: Composition: Molecular Weight = 832.99 gm
   Sodium     12.97 %  Na   17.49 % Na2O
   Calcium     0.48 %  Ca    0.67 % CaO
   Zirconium  21.90 %  Zr   29.59 % ZrO2
   Silicon    20.23 %  Si   43.28 % SiO2
   Hydrogen    0.80 %  H     7.14 % H2O
   Chlorine    2.13 %  Cl    2.13 % Cl
                -   %   Cl   -0.48 % -O=Cl2   
   Oxygen     41.49 %  O
             ______        ______ 
             100.00 %       99.81 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4.7Ca0.1Zr2Si6O18(OH)0.6Cl0.5•3(H2O)
Help on Environment: Environment: In a biotite-microcline xenolith and in pegmatitic veins in a nepheline syenite.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Peter Tarasoff, amateur mineralogist, Dollard-des-Ormeaux, Quebec, Canada.
Help on Name Pronunciation: Name Pronunciation: Petarasite + Pronunciation Say PETARASITE
Help on Synonym: Synonym: ICSD 20150
  IMA1979-063
  PDF 33-1310