Mineralogy Database

Lepkhenelmite-Zn Mineral Data

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General Lepkhenelmite-Zn Information

Help on Chemical  Formula: Chemical Formula: Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O)
Help on Composition: Composition: Molecular Weight = 1,261.08 gm
   Potassium   1.64 %  K     1.98 % K2O
   Barium      9.91 %  Ba   11.06 % BaO
   Sodium      0.44 %  Na    0.59 % Na2O
   Strontium   1.53 %  Sr    1.81 % SrO
   Calcium     0.83 %  Ca    1.16 % CaO
   Magnesium   0.02 %  Mg    0.03 % MgO
   Titanium   11.16 %  Ti   18.62 % TiO2
   Manganese   0.61 %  Mn    0.79 % MnO
   Niobium     7.44 %  Nb   10.64 % Nb2O5
   Aluminum    0.21 %  Al    0.40 % Al2O3
   Zinc        2.96 %  Zn    3.68 % ZnO
   Iron        0.18 %  Fe    0.23 % FeO
   Silicon    17.37 %  Si   37.16 % SiO2
   Hydrogen    1.33 %  H    11.84 % H2O
   Oxygen     44.38 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba0.91K0.53Ca0.26Na0.24Sr0.22Zn0.57Mn2+0.14Fe2+0.04Mg0.01Ti2.94Nb1.01Si7.8Al0.1O24 O1.38(OH)2.62�6.98(H2O)
Help on Environment: Environment: A hydrothermal mineral in cavities of a eudialyte - aegirine - feldspar pegmatite. Kuzmenkoite subgroup with dominance of Zn in the D structural site.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Lepkhe-Nelm Mountain, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality and composition.
Help on Synonym: Synonym: IMA2003-003