Zircon
      Hazen R M, Finger L W
      American Mineralogist 64 (1979) 196-201
      Crystal structure and compressibility of zircon at high pressure
      crystal No. 2, P = 23.2 kbar
      _database_code_amcsd 0000700

      CELL PARAMETERS:    6.5808   6.5808   5.9670   90.000   90.000   90.000
      SPACE GROUP: I4_1/amd  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    258.412
      Density (g/cm3):      4.711
      MAX. ABS. INTENSITY / VOLUME**2:      74.47883628    
      RIR:      5.148
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.09         42.91        4.4204    1   0   1         8
                27.10        100.00        3.2904    2   0   0         4
                33.96          7.70        2.6394    2   1   1        16
                35.75         58.20        2.5116    1   1   2         8
                38.70         12.88        2.3267    2   2   0         4
                40.83          5.97        2.2102    2   0   2         8
                43.98         20.12        2.0589    3   0   1         8
                47.77         13.44        1.9039    1   0   3         8
                52.42         14.05        1.7454    3   2   1        16
                53.70         53.63        1.7068    3   1   2        16
                55.78          3.56        1.6479    2   1   3        16
                55.89         14.73        1.6452    4   0   0         4
                60.00          2.78        1.5419    4   1   1        16
                62.23          3.05        1.4918    0   0   4         2
                63.09          2.88        1.4735    3   0   3         8
                63.19          9.76        1.4715    4   2   0         8
                68.13         16.61        1.3762    3   3   2         8
                69.14         10.11        1.3586    2   0   4         8
                73.71          5.01        1.2853    4   3   1        16
                75.74          8.67        1.2558    2   2   4         8
                76.53          2.51        1.2448    4   1   3        16
                81.21          9.56        1.1845    5   1   2        16
                83.01          2.92        1.1633    4   4   0         4
                88.39          2.52        1.1059    2   1   5        16
                88.47          5.05        1.1051    4   0   4         8
                89.23          1.91        1.0976    5   0   3         8
                89.32          4.45        1.0968    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.