Arsenic
      Schiferl D, Barrett CS
      Journal of Applied Crystallography 2 (1969) 30-36
      The crystal structure of arsenic at 4.2, 78 and 299 K
      Sample: T = 299 K
      _database_code_amcsd 0012835

      CELL PARAMETERS:    3.7598   3.7598  10.5475   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    129.125
      Density (g/cm3):      5.780
      MAX. ABS. INTENSITY / VOLUME**2:      189.5681765    
      RIR:     10.679
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.33         12.28        3.5158    0   0   3         2
                28.69          3.11        3.1112    1   0   1         6
                32.31        100.00        2.7706    0   1   2         6
                44.20         30.38        2.0492    1   0   4         6
                48.42         32.42        1.8799    1   1   0         6
                51.63         11.47        1.7704    0   1   5         6
                52.02          3.61        1.7579    0   0   6         2
                55.42          7.32        1.6578    1   1   3        12
                59.42         15.19        1.5556    2   0   2         6
                67.63          7.49        1.3853    0   2   4         6
                68.63          7.25        1.3675    1   0   7         6
                73.47          3.51        1.2888    2   0   5         6
                73.80          6.70        1.2840    1   1   6        12
                78.22          1.09        1.2221    0   1   8         6
                80.07          3.76        1.1985    1   2   2        12
                82.27          1.75        1.1719    0   0   9         2
                87.46          2.24        1.1152    2   1   4        12
                88.39          3.33        1.1058    0   2   7         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.