Arsenic
      Wyckoff R W G
      Crystal Structures 1 (1963) 7-83
      Second edition. Interscience Publishers, New York, New York
      _database_code_amcsd 0011252

      CELL PARAMETERS:    4.1310   4.1310   4.1310   54.167   54.167   54.167
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     43.061
      Density (g/cm3):      5.778
      MAX. ABS. INTENSITY / VOLUME**2:      190.8667306    
      RIR:     10.757
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.35         13.38        3.5141    1   1   1         2
                28.68          3.42        3.1124    1   0   0         6
                32.31        100.00        2.7711    1   1   0         6
                44.20         29.89        2.0490    2   1   1         6
                48.40         33.32        1.8808    0  -1   1         6
                51.64         12.72        1.7700    2   2   1         6
                52.05          3.37        1.7570    2   2   2         2
                55.41          8.27        1.6582    2   1   0        12
                59.39         15.72        1.5562    2   0   0         6
                67.61          7.63        1.3856    2   2   0         6
                80.03         12.08        1.1990    2  -1   1        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.