Kochkarite
      Talybov A G, Vainshtein B K
      Soviet Physics Crystallography 7 (1962) 32-37
      An electron diffraction study of the second superlattice in PbBi4Te7
      Locality: synthetic
      _database_code_amcsd 0015545

      CELL PARAMETERS:    4.4400   4.4400  71.7000   90.000   90.000  120.000
      SPACE GROUP: P-3m1     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1224.097
      Density (g/cm3):      7.879
      MAX. ABS. INTENSITY / VOLUME**2:      508.7130468    
      RIR:     21.023
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 4.93          3.32       17.9250    0   0   4         2
                19.81          1.27        4.4812    0   0  16         2
                23.67          2.51        3.7596    1   0   4         6
                25.20          2.15        3.5337    1   0   8         6
                27.59         99.96        3.2335    0   1  12         6
                38.15         40.42        2.3591    1   0  24         6
                40.64         33.43        2.2200    1   1   0         6
                45.54          7.82        1.9917    0   0  36         2
                49.82         17.56        1.8302    2   0  12         6
                56.96         11.20        1.6167    0   2  24         6
                62.67         16.09        1.4825    1   1  36        12
                66.17         13.31        1.4122    1   2  12        12
                67.24          6.29        1.3924    0   1  48         6
                72.30          9.80        1.3069    2   1  24        12
                73.95          4.54        1.2817    3   0   0         6
                81.62          3.30        1.1796    2   0  48         6
                84.99          2.92        1.1412    1   0  60         6
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.