Mineralogy Database

Ferrikatophorite Mineral Data

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General Ferrikatophorite Information

Help on Chemical  Formula: Chemical Formula: Na2Ca(Fe++,Mg)4Fe+++(Si7Al)O22(OH)2
Help on Composition: Composition: Molecular Weight = 943.33 gm
   Sodium      4.87 %  Na    6.57 % Na2O
   Calcium     4.25 %  Ca    5.94 % CaO
   Magnesium   2.58 %  Mg    4.27 % MgO
   Aluminum    2.86 %  Al    5.40 % Al2O3
   Iron       23.68 %  Fe   22.85 % FeO /  8.46 % Fe2O3
   Silicon    20.84 %  Si   44.59 % SiO2
   Hydrogen    0.21 %  H     1.91 % H2O
   Oxygen     40.71 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2CaFe2+3MgFe3+Si7AlO22(OH)2
Help on Environment: Environment: Phonolites and trachytes of the Rungwe Volcanics. Found in basic alkaline igneous rocks.
Help on IMA Status: IMA Status: Approved IMA 1997
Help on Locality: Locality: Mariupol, Ukraine and Lake Nyasa, Tanzania. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition and from the Greek for "carrying down", in allusion to its volcanic origin.
Help on Synonym: Synonym: Cataphorite