Shandite
      Peacock M A, McAndrew J
      American Mineralogist 35 (1950) 425-439
      On parkerite and shandite and the crystal structure of Ni3Pb2S2
      _database_code_amcsd 0000051

      CELL PARAMETERS:    5.5760   5.5760   5.5760   60.000   60.000   60.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    122.590
      Density (g/cm3):      8.866
      MAX. ABS. INTENSITY / VOLUME**2:      324.6452342    
      RIR:     11.923
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.50          9.52        4.5528    1   1   1         2
                19.50          3.05        4.5528    1   0   0         6
                22.55         59.84        3.9428    1   1   0         6
                32.10         46.89        2.7880    2   1   1         6
                32.10         53.11        2.7880    0  -1   1         6
                37.84          4.60        2.3776    2   1   0        12
                37.84          9.25        2.3776    1  -1   1         6
                39.59         20.39        2.2764    2   2   2         2
                39.59         52.64        2.2764    2   0   0         6
                46.04         45.95        1.9714    2   2   0         6
                50.45          1.36        1.8091    3   2   2         6
                50.45          5.31        1.8091    3   1   1         6
                51.85         15.71        1.7633    3   2   1        12
                51.85         11.99        1.7633    2  -1   1        12
                57.23          5.75        1.6097    3   3   2         6
                57.23         15.36        1.6097    3   1   0        12
                57.23          8.62        1.6097    1  -2   1         6
                67.15         10.63        1.3940    4   2   2         6
                67.15         13.45        1.3940    0  -2   2         6
                70.67          1.28        1.3329    3  -1   1        12
                71.83          3.41        1.3143    4   3   3         6
                71.83          2.53        1.3143    4   1   1         6
                71.83          2.53        1.3143    3   3   0         6
                71.83          3.86        1.3143    0  -1   3        12
                76.38          5.63        1.2468    3  -1   2        12
                76.38          4.19        1.2468    4   3   1        12
                80.85          4.40        1.1888    4   2   4         6
                80.85         11.08        1.1888    4   2   0        12
                80.85          4.78        1.1888    2  -2   2         6
                85.27          5.66        1.1382    4   0   0         6
                89.65          1.90        1.0935    3  -2   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.