Zircon
      Hazen R M, Finger L W
      American Mineralogist 64 (1979) 196-201
      Crystal structure and compressibility of zircon at high pressure
      crystal No. 1, P = 9.8 kbar
      _database_code_amcsd 0000698

      CELL PARAMETERS:    6.5927   6.5927   5.9742   90.000   90.000   90.000
      SPACE GROUP: I4_1/amd  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    259.661
      Density (g/cm3):      4.688
      MAX. ABS. INTENSITY / VOLUME**2:      74.23044050    
      RIR:      5.155
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.06         42.12        4.4269    1   0   1         8
                27.05        100.00        3.2964    2   0   0         4
                33.91          7.71        2.6439    2   1   1        16
                35.70         58.07        2.5151    1   1   2         8
                38.63         12.82        2.3309    2   2   0         4
                40.76          6.14        2.2135    2   0   2         8
                43.90         20.25        2.0625    3   0   1         8
                47.71         13.51        1.9063    1   0   3         8
                52.33         14.30        1.7484    3   2   1        16
                53.61         53.34        1.7096    3   1   2        16
                55.70          3.66        1.6502    2   1   3        16
                55.78         14.68        1.6482    4   0   0         4
                59.88          2.76        1.5446    4   1   1        16
                62.15          2.95        1.4935    0   0   4         2
                62.99          2.84        1.4756    3   0   3         8
                63.06          9.62        1.4742    4   2   0         8
                68.00         16.53        1.3785    3   3   2         8
                69.04          9.99        1.3604    2   0   4         8
                73.56          5.10        1.2876    4   3   1        16
                75.62          8.72        1.2575    2   2   4         8
                76.39          2.54        1.2468    4   1   3        16
                81.04          9.46        1.1866    5   1   2        16
                82.83          2.87        1.1654    4   4   0         4
                88.24          2.59        1.1074    2   1   5        16
                88.30          4.94        1.1067    4   0   4         8
                89.05          1.96        1.0994    5   0   3         8
                89.11          4.47        1.0988    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.