Mineralogy Database

Frankamenite Mineral Data

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General Frankamenite Information

Help on Chemical  Formula: Chemical Formula: K3Na3Ca5(Si12O30)[F,(OH)]4•(H2O)
Help on Composition: Composition: Molecular Weight = 1,298.37 gm
   Potassium   8.73 %  K    10.52 % K2O
   Sodium      5.13 %  Na    6.92 % Na2O
   Calcium    15.74 %  Ca   22.03 % CaO
   Manganese   0.42 %  Mn    0.55 % MnO
   Silicon    25.96 %  Si   55.53 % SiO2
   Hydrogen    0.23 %  H     2.08 % H2O
   Oxygen     39.68 %  O
   Fluorine    4.10 %  F     4.10 % F
                -   %   F    -1.73 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2.9Na2.9Ca5.1Mn2+0.1Si12O30F2.8(OH)1.4�0.8(H2O)
Help on Environment: Environment: Charoitic rocks of the Murun alkaline massif.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: Charo and Tokko Rivers, Murun, Murunsky massif, Yakutia, East Siberia, Russia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after V.A. Frank-Kamenetsky (1915-1994), Russian mineralogist-crystallographer.
Help on Name Pronunciation: Name Pronunciation: Frankamenite + Pronunciation Say FRANKAMENITE
Help on Synonym: Synonym: Canasite - triclinic
  ICSD 82885
  IMA1994-050