Mineralogy Database

Taseqite Mineral Data

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General Taseqite Information

Help on Chemical Formula: Chemical Formula: Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2
Help on Composition: Composition: Molecular Weight = 3,403.45 gm
   Potassium   0.20 %  K     0.24 % K2O
   Sodium      5.95 %  Na    8.02 % Na2O
   Strontium  12.31 %  Sr   14.55 % SrO
   Calcium     6.09 %  Ca    8.52 % CaO
   Cerium      0.08 %  Ce    0.10 % Ce2O3
   Yttrium     0.24 %  Y     0.30 % Y2O3
   Hafnium     0.26 %  Hf    0.31 % HfO2
   Zirconium   7.61 %  Zr   10.28 % ZrO2
   Tantalum    0.21 %  Ta    0.26 % Ta2O5
   Manganese   2.44 %  Mn    3.15 % MnO
   Niobium     3.19 %  Nb    4.57 % Nb2O5
   Iron        3.17 %  Fe    4.07 % FeO
   Silicon    20.26 %  Si   43.34 % SiO2
   Tin         0.10 %  Sn    0.13 % SnO2
   Hydrogen    0.07 %  H     0.61 % H2O
   Chlorine    1.99 %  Cl    1.99 % Cl
                -   %   Cl   -0.45 % -O=Cl2   
   Oxygen     35.84 %  O
             ______        ______ 
             100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na8.81Sr4.78K0.17Ce0.02Ca5.17Mn2+0.59Y0.09Fe2+1.93Mn2+0.92Zr2.84Nb0.11Hf0.05Nb1.06 Ta0.04Sn0.03Si24.55O74.65(OH)0.75(OH)0.09
Help on Environment: Environment: Occurs in a cavity in a late-stage hydrothermal albitite vein in the Il�maussaq alkaline complex. (Eudialyte group, predominance of Sr in N(4) and Nb in M(3); structure determined).
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Il�maussaq alkaline complex, South Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the northern part of the complex, at theTaseq slope.
Help on Synonym: Synonym: IMA2002-055