Pb2OFCl
      Aurivillius B
      Chemica Scripta 11 (1977) 208-211
      A case of mimetic twinning. The crystal structures of Pb2OFX (X=Cl, Br, and I)
      Locality: synthetic
      Sample: Pb2OFCl(H), part B of the twin, isostructural with blixite
      _database_code_amcsd 0012189

      CELL PARAMETERS:    5.7293   5.7293  12.5602   90.000   90.000   90.000
      SPACE GROUP: Acmm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    412.287
      Density (g/cm3):      7.810
      MAX. ABS. INTENSITY / VOLUME**2:      376.9728941    
      RIR:     15.716
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.10         11.38        6.2801    0   0   2         2
                15.47          5.41        5.7293    1   0   0         2
                23.07         52.15        3.8556    1   1   1         8
                28.42         14.01        3.1400    0   0   4         2
                30.71        100.00        2.9114    1   1   3         8
                31.22         23.94        2.8647    0   2   0         2
                31.22         20.29        2.8647    2   0   0         2
                32.52          1.02        2.7536    1   0   4         4
                35.02          1.61        2.5622    1   2   0         4
                35.77          2.53        2.5105    2   1   1         8
                41.31          6.30        2.1854    2   1   3         8
                42.34          1.51        2.1349    1   1   5         8
                42.73         14.59        2.1163    0   2   4         4
                42.73         12.72        2.1163    2   0   4         4
                43.22          5.03        2.0934    0   0   6         2
                44.74         20.20        2.0256    2   2   0         4
                47.14          1.81        1.9278    2   2   2         8
                47.62          2.53        1.9098    3   0   0         2
                50.92          6.21        1.7932    1   3   1         8
                50.92          4.53        1.7932    3   1   1         8
                53.86          8.29        1.7022    2   2   4         8
                54.27          7.14        1.6902    0   2   6         4
                54.27          6.21        1.6902    2   0   6         4
                55.24         17.37        1.6628    1   3   3         8
                55.24         12.67        1.6628    3   1   3         8
                56.06         13.62        1.6406    1   1   7         8
                56.39          1.48        1.6317    3   0   4         4
                58.05          2.56        1.5890    3   2   0         4
                58.82          1.39        1.5700    0   0   8         2
                62.52          1.68        1.4856    2   3   3         8
                63.27          1.34        1.4698    2   1   7         8
                63.96          5.04        1.4557    2   2   6         8
                65.13          3.36        1.4323    0   4   0         2
                65.13          1.81        1.4323    4   0   0         2
                65.88          1.87        1.4178    3   2   4         8
                67.86          1.24        1.3811    4   1   1         8
                68.10          1.08        1.3768    0   2   8         4
                70.08          1.62        1.3427    3   3   1         8
                71.50          1.74        1.3195    1   1   9         8
                71.54          3.71        1.3188    4   1   3         8
                72.54          1.94        1.3032    0   4   4         4
                73.72          4.90        1.2852    3   3   3         8
                73.99          3.03        1.2811    2   4   0         4
                73.99          1.76        1.2811    4   2   0         4
                74.41          5.43        1.2749    1   3   7         8
                74.41          3.96        1.2749    3   1   7         8
                75.05          1.26        1.2657    3   2   6         8
                75.73          1.46        1.2560    0   0  10         2
                76.81          1.95        1.2409    2   2   8         8
                81.07          3.18        1.1862    2   4   4         8
                81.07          1.98        1.1862    4   2   4         8
                81.41          1.42        1.1821    0   4   6         4
                84.16          1.70        1.1503    0   2  10         4
                84.16          1.45        1.1503    2   0  10         4
                87.08          1.18        1.1191    1   5   1         8
                88.46          2.01        1.1052    4   3   3         8
                89.09          2.80        1.0990    1   1  11         8
                89.13          1.65        1.0986    4   1   7         8
                89.74          1.55        1.0927    4   2   6         8
                89.74          2.48        1.0927    2   4   6         8
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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.