H3.4 O7 Ta1.4 W0.6
      Hervieu M, Michel C, Raveau B
      Bulletin de la Societe Chimique de France 1971 (1971) 3939-3943
      Proprietes d'echanges d'ions de quelques oxydes ternaires de type
      pyrochlore: les pyrochlores H1+x(H2O)Ta1+xW1-xO6 et NH4TaWO6
      _cod_database_code 1001164
      _database_code_amcsd 0012102

      CELL PARAMETERS:   10.4850  10.4850  10.4850   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1152.671
      Density (g/cm3):      5.481
      MAX. ABS. INTENSITY / VOLUME**2:      280.6030394    
      RIR:     16.671
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.63        100.00        6.0535    1   1   1         8
                28.23         58.90        3.1613    3   1   1        24
                29.51         59.25        3.0268    2   2   2         8
                34.21         18.27        2.6212    4   0   0         6
                37.39         12.72        2.4054    3   3   1        24
                44.92          9.90        2.0178    5   1   1        24
                44.92          8.80        2.0178    3   3   3         8
                49.16         23.85        1.8535    4   4   0        12
                51.57         16.24        1.7723    5   3   1        48
                57.65          8.08        1.5989    5   3   3        24
                58.38         22.52        1.5807    6   2   2        24
                61.25          6.41        1.5134    4   4   4         8
                63.35          5.66        1.4682    5   5   1        24
                63.35          4.49        1.4682    7   1   1        24
                68.77          7.80        1.3650    7   3   1        48
                68.77          3.09        1.3650    5   5   3        24
                72.06          3.30        1.3106    8   0   0         6
                74.00          1.45        1.2809    7   3   3        24
                79.10          3.50        1.2107    7   5   1        48
                79.73          7.73        1.2027    6   6   2        24
                82.24          6.68        1.1723    8   4   0        24
                84.11          1.53        1.1509    9   1   1        24
                84.11          2.87        1.1509    7   5   3        48
                89.08          3.72        1.0991    9   3   1        48
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.