Mineralogy Database

Faujasite-Mg Mineral Data

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General Faujasite-Mg Information

Help on Chemical  Formula: Chemical Formula: (Mg,Na2,Ca)3.5[Al7Si17O48]•32(H2O)
Help on Composition: Composition: Molecular Weight = 2,099.99 gm
   Sodium      1.15 %  Na    1.55 % Na2O
   Calcium     0.67 %  Ca    0.93 % CaO
   Magnesium   2.43 %  Mg    4.03 % MgO
   Aluminum    8.99 %  Al   16.99 % Al2O3
   Silicon    22.74 %  Si   48.64 % SiO2
   Hydrogen    3.07 %  H    27.45 % H2O
   Oxygen     60.95 %  O
             ______        ______ 
             100.00 %       99.60 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 3.5(Mg0.6)3.5(Na0.3)3.5(Ca0.1)Al7Si17O48•32(H2O)
Help on Environment: Environment: Usually occurs in basaltic volcanics, metapyroxenite, also with augite in limburgite.
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: Sasback in the Kaiserstuhl, Baden, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Barthelemy Faujas de Saint Fond (1741-1819), French geologist and writer on the origin of volcanoes. The Mg-dominant member of the faujasite series.
Help on Name Pronunciation: Name Pronunciation: Faujasite-Mg + Pronunciation Say FAUJASITE-MG