Ca0.50HTa2O6*H2O
      Groult D, Michel C, Raveau B
      Journal of Inorganic and Nuclear Chemistry 37 (1975) 2203-2205
      Sur de nouveaux pyrochlores lacunaires d'ions bivalents synthetises par
      echanges d'ions
      Locality: synthetic
      _database_code_amcsd 0013041

      CELL PARAMETERS:   10.4780  10.4780  10.4780   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1150.364
      Density (g/cm3):      5.763
      MAX. ABS. INTENSITY / VOLUME**2:      236.3973764    
      RIR:     13.357
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.64        100.00        6.0495    1   1   1         8
                28.25         48.00        3.1592    3   1   1        24
                29.53         90.65        3.0247    2   2   2         8
                34.23         31.10        2.6195    4   0   0         6
                37.41         13.58        2.4038    3   3   1        24
                42.25          1.13        2.1388    4   2   2        24
                44.95          7.70        2.0165    5   1   1        24
                44.95          7.94        2.0165    3   3   3         8
                49.19         36.17        1.8523    4   4   0        12
                51.61         18.77        1.7711    5   3   1        48
                57.69          7.16        1.5979    5   3   3        24
                58.42         34.69        1.5796    6   2   2        24
                61.29          9.48        1.5124    4   4   4         8
                63.39          6.88        1.4672    5   5   1        24
                63.39          4.58        1.4672    7   1   1        24
                68.82          8.29        1.3641    7   3   1        48
                68.82          2.67        1.3641    5   5   3        24
                72.12          4.75        1.3097    8   0   0         6
                74.06          1.56        1.2801    7   3   3        24
                79.16          3.69        1.2099    7   5   1        48
                79.79         12.18        1.2019    6   6   2        24
                82.31         10.97        1.1715    8   4   0        24
                84.18          3.35        1.1501    7   5   3        48
                84.18          2.02        1.1501    9   1   1        24
                89.15          3.62        1.0984    9   3   1        48
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.