Zircon
      Robinson K, Gibbs G V, Ribbe P H
      American Mineralogist 56 (1971) 782-790
      The structure of zircon: A comparison with garnet
      _database_code_amcsd 0000237

      CELL PARAMETERS:    6.6070   6.6070   5.9820   90.000   90.000   90.000
      SPACE GROUP: I4_1/amd  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    261.129
      Density (g/cm3):      4.662
      MAX. ABS. INTENSITY / VOLUME**2:      74.29427332    
      RIR:      5.189
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.02         42.36        4.4345    1   0   1         8
                26.99        100.00        3.3035    2   0   0         4
                33.84          7.70        2.6492    2   1   1        16
                35.64         58.11        2.5190    1   1   2         8
                38.54         12.99        2.3359    2   2   0         4
                40.69          6.02        2.2172    2   0   2         8
                43.80         20.40        2.0667    3   0   1         8
                47.64         13.61        1.9090    1   0   3         8
                52.21         14.40        1.7521    3   2   1        16
                53.50         54.41        1.7128    3   1   2        16
                55.60          3.67        1.6528    2   1   3        16
                55.64         14.96        1.6517    4   0   0         4
                59.74          2.83        1.5479    4   1   1        16
                62.06          3.09        1.4955    0   0   4         2
                62.87          2.95        1.4782    3   0   3         8
                62.91          9.94        1.4774    4   2   0         8
                67.85         17.08        1.3813    3   3   2         8
                68.92         10.35        1.3624    2   0   4         8
                73.38          5.22        1.2903    4   3   1        16
                75.48          8.95        1.2595    2   2   4         8
                76.22          2.60        1.2491    4   1   3        16
                80.84          9.92        1.1890    5   1   2        16
                82.61          3.01        1.1680    4   4   0         4
                88.08          2.65        1.1089    2   1   5        16
                88.12          5.25        1.1086    4   0   4         8
                88.84          2.01        1.1015    5   0   3         8
                88.87          4.66        1.1012    6   0   0         4
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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.