Mineralogy Database

Giuseppettite Mineral Data

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General Giuseppettite Information

Help on Chemical  Formula: Chemical Formula: [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O
Help on Composition: Composition: Molecular Weight = 8,668.33 gm
   Potassium   7.22 %  K     8.69 % K2O
   Sodium     11.14 %  Na   15.02 % Na2O
   Calcium     2.77 %  Ca    3.88 % CaO
   Aluminum   14.94 %  Al   28.23 % Al2O3
   Silicon    15.55 %  Si   33.27 % SiO2
   Hydrogen    0.12 %  H     1.04 % H2O
   Sulfur      3.70 %  S     9.24 % SO3
   Chlorine    0.82 %  Cl    0.82 % Cl
                -   %   Cl   -0.18 % -O=Cl2   
   Oxygen     43.74 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na42K16Ca6Al48Si48O192(SO4)10Cl2•5(H2O)
Help on Environment: Environment: As veinlets in a block of sanidinite volcanic ejecta.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: At Sacrafano, in the Biachella Valley, Lazio, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Giuseppe Giuseppetti, Professor of Mineralogy, University of Pavia, Pava, Italy.
Help on Name Pronunciation: Name Pronunciation: Giuseppettite + Pronunciation Say GIUSEPPETTITE