Tungstenite
      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
      Sample: 3R polytype
      _database_code_amcsd 0013602

      CELL PARAMETERS:    3.1580   3.1580  18.4900   90.000   90.000  120.000
      SPACE GROUP: R3m       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    159.695
      Density (g/cm3):      7.734
      MAX. ABS. INTENSITY / VOLUME**2:      430.5207994    
      RIR:     18.125
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.37        100.00        6.1633    0   0   3         1
                28.97          7.58        3.0817    0   0   6         1
                33.11         31.73        2.7055    1   0   1         3
                34.19         31.97        2.6226    0   1   2         3
                38.24         33.38        2.3538    1   0   4         3
                41.05         30.59        2.1989    0   1   5         3
                44.08          6.28        2.0544    0   0   9         1
                47.88         19.15        1.9000    1   0   7         3
                51.79         12.51        1.7653    0   1   8         3
                58.45         12.80        1.5790    1   1   0         6
                60.04          3.88        1.5408    0   0  12         1
                60.43          5.43        1.5318    1   0  10         3
                60.53         12.81        1.5296    1   1   3         6
                65.14          4.23        1.4321    0   1  11         3
                66.54          4.40        1.4053    1   1   6         6
                68.85          3.38        1.3637    0   2   1         3
                69.49          3.58        1.3527    2   0   2         3
                72.02          4.40        1.3113    0   2   4         3
                73.89          4.53        1.2826    2   0   5         3
                75.31          2.44        1.2619    1   0  13         3
                76.02          6.44        1.2519    1   1   9         6
                78.81          3.73        1.2144    0   2   7         3
                80.81          2.32        1.1893    0   1  14         3
                81.85          2.82        1.1769    2   0   8         3
                88.70          6.90        1.1028    1   1  12         6
                89.04          1.64        1.0994    0   2  10         3
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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.