GaP
      Wyckoff R W G
      Crystal Structures 1 (1963) 85-237
      Second edition. Interscience Publishers, New York, New York
      Note: ZnS structure, sphalerite structure
      _database_code_amcsd 0011524

      CELL PARAMETERS:    5.4505   5.4505   5.4505   90.000   90.000   90.000
      SPACE GROUP: F-43m     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    161.923
      Density (g/cm3):      4.130
      MAX. ABS. INTENSITY / VOLUME**2:      119.6574614    
      RIR:      9.434
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.36        100.00        3.1468    1   1   1         4
                32.86         14.21        2.7253    2   0   0         6
                47.16         58.00        1.9270    2   2   0        12
                55.95         39.28        1.6434    3   1   1        12
                58.68          3.40        1.5734    2   2   2         4
                68.91          8.29        1.3626    4   0   0         6
                76.13         14.02        1.2504    3   3   1        12
                78.48          3.61        1.2188    4   2   0        24
                87.72         16.08        1.1126    4   2   2        12
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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.