F7 K3 Zr
      Hampson G, Pauling L
      Journal of the American Chemical Society 60 (1938) 2702-2707
      The Structure of Ammonium Heptafluozirconate and Potassium
      Heptafluozirconate and the Configuration of the Heptafluozirconate Group
      _cod_database_code 1010100
      _database_code_amcsd 0017033

      CELL PARAMETERS:    8.9510   8.9510   8.9510   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    717.158
      Density (g/cm3):      3.163
      MAX. ABS. INTENSITY / VOLUME**2:      36.15142855    
      RIR:      3.722
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.16         59.88        5.1679    1   1   1         8
                19.84         36.10        4.4755    2   0   0         6
                28.20        100.00        3.1647    2   2   0        12
                33.20          6.71        2.6988    3   1   1        24
                40.30         24.83        2.2378    4   0   0         6
                44.10          2.94        2.0535    3   3   1        24
                45.31         18.86        2.0015    4   2   0        24
                49.91         34.08        1.8271    4   2   2        24
                53.17          2.08        1.7226    3   3   3         8
                53.17          5.51        1.7226    5   1   1        24
                58.31         11.01        1.5823    4   4   0        12
                61.27         11.45        1.5130    5   3   1        48
                62.23          1.29        1.4918    6   0   0         6
                62.23          8.00        1.4918    4   4   2        24
                66.01          5.96        1.4153    6   2   0        24
                69.68          5.35        1.3494    6   2   2        24
                73.27          1.29        1.2920    4   4   4         8
                76.79          2.75        1.2413    6   4   0        24
                80.26          6.53        1.1961    6   4   2        48
                82.84          2.26        1.1653    5   5   3        24
                89.66          2.15        1.0935    7   3   3        24
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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.