Sphalerite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R050237
      Skinner B J
      American Mineralogist 46 (1961) 1399-1411
      Unit-cell edges of natural and synthetic sphalerites

      CELL PARAMETERS:   5.409300   5.409300   5.409300   90.00000   90.00000   90.00000
      SPACE GROUP: F-43m
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                28.59        100.00        3.1234    1   1   1
                33.12         11.98        2.7049    2   0   0
                47.53         56.74        1.9127    2   2   0
                56.39         36.89        1.6311    3   1   1
                59.14          2.94        1.5617    2   2   2
                69.47          7.63        1.3525    4   0   0
                76.76         12.61        1.2411    3   3   1
                79.14          3.10        1.2097    4   2   0
                88.49         14.29        1.1043    4   2   2
                88.49         14.29        1.1043    4   2   2
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.