WSe2
      Schutte W J, de Boer J L, Jellinek F
      Journal of Solid State Chemistry 70 (1987) 207-209
      Crystal structures of tungsten disulfide and diselenide
      _database_code_amcsd 0013603

      CELL PARAMETERS:    3.2820   3.2820  12.9600   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    120.896
      Density (g/cm3):      9.387
      MAX. ABS. INTENSITY / VOLUME**2:      386.1043125    
      RIR:     13.393
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.67         90.00        6.4800    0   0   2         2
                31.48         35.64        2.8423    1   0   0         6
                32.24          8.70        2.7763    1   0   1        12
                34.46         14.41        2.6029    1   0   2        12
                37.89        100.00        2.3745    1   0   3        12
                41.82          7.68        2.1600    0   0   6         2
                47.47         43.63        1.9152    1   0   5        12
                53.27          5.45        1.7198    1   0   6        12
                56.04         25.39        1.6410    1   1   0         6
                56.83          7.94        1.6200    0   0   8         2
                57.97         11.91        1.5908    1   1   2        12
                65.70          3.76        1.4211    2   0   0         6
                66.42          7.12        1.4074    1   0   8        12
                67.47          1.79        1.3882    2   0   2        12
                69.65         14.63        1.3500    2   0   3        12
                72.31          7.94        1.3067    1   1   6        12
                73.76          1.23        1.2845    1   0   9        12
                76.43          9.31        1.2461    2   0   5        12
                80.98          1.40        1.1872    2   0   6        12
                83.93         13.84        1.1529    1   1   8        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.