Mineralogy Database

Marinellite Mineral Data

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General Marinellite Information

Help on Chemical  Formula: Chemical Formula: [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2•6(H2O)
Help on Composition: Composition: Molecular Weight = 6,673.61 gm
   Potassium   6.59 %  K     7.94 % K2O
   Sodium     11.09 %  Na   14.95 % Na2O
   Calcium     3.68 %  Ca    5.14 % CaO
   Aluminum   14.71 %  Al   27.80 % Al2O3
   Silicon    15.30 %  Si   32.73 % SiO2
   Hydrogen    0.10 %  H     0.93 % H2O
   Sulfur      3.94 %  S     9.84 % SO3
   Chlorine    0.87 %  Cl    0.87 % Cl
                -   %   Cl   -0.20 % -O=Cl2   
   Oxygen     43.72 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na32.19K11.25Ca6.12Si36.35Al36.39O146.12(SO4)8.2Cl1.64�3.44(H2O)
Help on Environment: Environment: In an ejected volcanic block. Cancrinite-sodalite group; structure discussed.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Sacrofano, Biacchella Valley, Latium, Italy Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Giorgio Marinelli (1922-1993), Professor, Department of Earth Sciences, University of Pisa, specialist in magma genesis and tectonic settings.
Help on Synonym: Synonym: IMA2002-021