Mineralogy Database

Farneseite Mineral Data

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General Farneseite Information

Help on Chemical  Formula: Chemical Formula: (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12•6(H2O)
Help on Composition: Composition: Molecular Weight = 8,075.57 gm
   Potassium   4.44 %  K     5.35 % K2O
   Sodium     10.37 %  Na   13.98 % Na2O
   Calcium     4.34 %  Ca    6.08 % CaO
   Aluminum   13.87 %  Al   26.20 % Al2O3
   Silicon    14.78 %  Si   31.62 % SiO2
   Hydrogen    0.08 %  H     0.68 % H2O
   Sulfur      4.54 %  S    11.33 % SO3
   Chlorine    4.60 %  Cl    4.60 % Cl
                -   %   Cl   -1.04 % -O=Cl2   
   Oxygen     42.94 %  O
   Fluorine    0.04 %  F     0.04 % F
                -   %   F    -0.02 % -O=F2    
             ______        ______ 
             100.00 %       98.82 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na36.43K9.18Ca8.75Si42.5Al41.5O168(SO4)11.43F0.16Cl10.48�3.03(H2O)
Help on Environment: Environment: Found in a pyroclastic sequence, associated with the Latera caldera collapse in the Latium volcanic area. Cancrinite-sodalite group.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Farnese, Viterbo province, Latium, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2004-043