Mineralogy Database

Polyphite-VII Mineral Data

Search Webmineral :
  

General Polyphite-VII Information

Help on Chemical  Formula: Chemical Formula: Na17Ca3Mg(Ti,Mn)4[Si2O7]2(PO4)6O2F6
Help on Composition: Composition: Molecular Weight = 1,786.09 gm
   Sodium      21.88 %  Na   29.50 % Na2O
   Calcium      6.73 %  Ca    9.42 % CaO
   Magnesium    1.36 %  Mg    2.26 % MgO
   Titanium     8.04 %  Ti   13.42 % TiO2
   Manganese    3.08 %  Mn    4.42 % Mn2O3
   Silicon      6.29 %  Si   13.46 % SiO2
   Phosphorus  10.40 %  P    23.84 % P2O5
   Oxygen      35.83 %  O
   Fluorine     6.38 %  F     6.38 % F
                 -   %   F    -2.69 % -O=F2    
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na17Ca3MgTi3Mn3+(Si2O7)2(PO4)6O2F6
Help on Environment: Environment: In ultra-agpaitic pegmatites in a differentiated alkaline massif.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: Lovozero alkaline complex, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "many" and PHosphorus for the multiple phosphate anions in the formula.
Help on Name Pronunciation: Name Pronunciation: Polyphite-VII + Pronunciation Say POLYPHITE-VII
Help on Synonym: Synonym: IMA1990-025