Sudburyite
      Wyckoff R W G
      Crystal Structures 1 (1963) 85-237
      Second edition. Interscience Publishers, New York, New York
      Note: ideal nickel arsenide structure
      _database_code_amcsd 0011585

      CELL PARAMETERS:    4.0700   4.0700   5.5820   90.000   90.000  120.000
      SPACE GROUP: P6_3mc    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     80.077
      Density (g/cm3):      9.462
      MAX. ABS. INTENSITY / VOLUME**2:      276.8162733    
      RIR:      9.526
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.27         17.42        3.5247    1   0   0         6
                29.98         95.67        2.9803    1   0   1         6
                41.26        100.00        2.1881    1   0   2         6
                44.52         72.26        2.0350    1   1   0         6
                51.88          1.87        1.7624    2   0   0         6
                54.61         15.37        1.6806    2   0   1         6
                55.88         14.22        1.6455    1   0   3         6
                62.31         24.89        1.4901    2   0   2         6
                67.07          5.94        1.3955    0   0   4         1
                70.71          1.20        1.3322    2   1   0        12
                72.90          1.08        1.2975    1   0   4         6
                73.01         11.31        1.2958    2   1   1        12
                74.10          5.38        1.2795    2   0   3         6
                79.76         21.44        1.2023    2   1   2        12
                82.01          9.15        1.1749    3   0   0         6
                84.11         17.00        1.1509    1   1   4         6
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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.