Mineralogy Database

Neskevaaraite-Fe Mineral Data

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General Neskevaaraite-Fe Information

Help on Chemical Formula: Chemical Formula: NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4•6(H2O)
Help on Composition: Composition: Molecular Weight = 1,235.20 gm
   Potassium   7.31 %  K     8.81 % K2O
   Barium      3.00 %  Ba    3.35 % BaO
   Sodium      2.31 %  Na    3.11 % Na2O
   Magnesium   0.45 %  Mg    0.75 % MgO
   Titanium    9.03 %  Ti   15.07 % TiO2
   Manganese   0.40 %  Mn    0.52 % MnO
   Niobium    12.56 %  Nb   17.97 % Nb2O5
   Iron        1.40 %  Fe    1.80 % FeO
   Silicon    18.35 %  Si   39.26 % SiO2
   Hydrogen    1.05 %  H     9.39 % H2O
   Oxygen     44.13 %  O
             ______        ______ 
             100.00 %      100.03 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na1.24K2.31Ba0.27Fe2+0.31Mg0.23Mn2+0.09Ti2.33Nb1.67Si8.07O24.21O2.86(OH)1.12�5.88(H2O)
Help on Environment: Environment: In a hydrothermally altered carbonatite body. Labuntsovite group; structure determined.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Drillcore from the Neskevaara Hill, central part of the Vuoriyarvi alkaline-ultrabasic massif, northern Karelia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality and composition.
Help on Synonym: Synonym: IMA2002-007