Chapmanite
      Zhukhlistov A P, Zvyagin B B
      Soviet Physics Crystallography 22 (1977) 419-423
      Determination of the crystal structures of chapmanite and bismuthoferrite by
      high-voltage electron diffraction
      Locality: Smilokov, Czechoslovakia
      Note: z(O3) corrected
      _database_code_amcsd 0015577

      CELL PARAMETERS:    5.1900   8.9900   7.7000   90.000  100.670   90.000
      SPACE GROUP: Cm        
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    353.056
      Density (g/cm3):      4.078
      MAX. ABS. INTENSITY / VOLUME**2:      27.87225659    
      RIR:      2.225
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.69         81.98        7.5669    0   0   1         1
                20.02          2.68        4.4361    1   1   0         2
                21.53         31.04        4.1279   -1   1   1         2
                23.01         71.61        3.8646    0   2   1         2
                23.51         10.53        3.7834    0   0   2         1
                24.85        100.00        3.5834    1   1   1         2
                28.43         81.07        3.1390   -1   1   2         2
                30.89         52.18        2.8946    0   2   2         2
                33.51         26.80        2.6739    1   1   2         2
                34.72         53.48        2.5837    1   3   0         2
                34.99         25.65        2.5646   -2   0   1         1
                35.19          9.03        2.5501    2   0   0         1
                35.59         18.72        2.5223    0   0   3         1
                35.65         15.02        2.5184   -1   3   1         2
                37.84         18.74        2.3778    1   3   1         2
                38.10          9.68        2.3622   -1   1   3         2
                38.76          9.64        2.3234   -2   0   2         1
                39.32          2.61        2.2916    2   0   1         1
                40.12          2.50        2.2475    0   4   0         2
                40.38          5.69        2.2334   -1   3   2         2
                40.50          6.17        2.2275   -2   2   1         2
                40.68          9.27        2.2180    2   2   0         2
                41.03          6.62        2.1996    0   2   3         2
                41.93         12.92        2.1545    0   4   1         2
                43.86         11.75        2.0640   -2   2   2         2
                44.07          4.77        2.0550    1   1   3         2
                44.27          4.46        2.0461    1   3   2         2
                44.37         12.20        2.0416    2   2   1         2
                45.67          2.95        1.9866   -2   0   3         1
                46.48          5.53        1.9536    2   0   2         1
                47.03          8.42        1.9323    0   4   2         2
                47.99         11.27        1.8959   -1   3   3         2
                48.10          2.69        1.8917    0   0   4         1
                49.23          2.94        1.8510   -1   1   4         2
                50.21          7.21        1.8170   -2   2   3         2
                50.97          7.50        1.7917    2   2   2         2
                52.48          2.31        1.7436    0   2   4         2
                53.07         22.46        1.7258    1   3   3         2
                54.42          1.46        1.6861    2   4   0         2
                54.70          6.86        1.6780    0   4   3         2
                54.74          2.58        1.6768   -1   5   1         2
                54.81          9.24        1.6749   -2   0   4         1
                54.97          4.75        1.6705    3   1   0         2
                55.81          6.20        1.6473    2   0   3         1
                55.82          2.52        1.6470    1   1   4         2
                55.98          5.73        1.6426   -3   1   2         2
                56.33          8.62        1.6334    1   5   1         2
                57.01          7.48        1.6154   -2   4   2         2
                57.43          9.37        1.6046    2   4   1         2
                57.63         10.76        1.5995   -1   3   4         2
                58.24          8.28        1.5842   -1   5   2         2
                58.73          6.64        1.5721    3   1   1         2
                58.84          3.94        1.5695   -2   2   4         2
                59.79          2.71        1.5467    2   2   3         2
                60.67          6.15        1.5264   -3   1   3         2
                61.25          2.23        1.5134    0   0   5         1
                61.26          3.71        1.5130    1   5   2         2
                61.47          2.83        1.5085   -1   1   5         2
                61.93         10.09        1.4983    0   6   0         2
                61.98         19.96        1.4973   -3   3   1         2
                62.39          3.55        1.4885   -2   4   3         2
                62.85          3.86        1.4787    3   3   0         2
                63.05          2.57        1.4744    2   4   2         2
                63.27          3.47        1.4698    0   6   1         2
                63.63          6.19        1.4624    1   3   4         2
                63.78          3.05        1.4592   -3   3   2         2
                64.28          1.48        1.4492   -1   5   3         2
                64.37          1.58        1.4473    0   4   4         2
                65.00          1.62        1.4348    3   1   2         2
                65.03          2.55        1.4343    0   2   5         2
                65.65          2.84        1.4221   -2   0   5         1
                66.81          5.79        1.4003    2   0   4         1
                67.74          1.35        1.3832   -3   1   4         2
                68.56          1.17        1.3688    1   5   3         2
                68.68          2.39        1.3666    1   1   5         2
                68.90         10.35        1.3628   -1   3   5         2
                69.30          1.87        1.3559   -2   2   5         2
                70.06          1.12        1.3430   -2   4   4         2
                70.43          2.03        1.3369    2   2   4         2
                72.25          3.42        1.3077    3   3   2         2
                72.54          1.07        1.3032   -1   5   4         2
                72.92          3.66        1.2973   -4   0   1         1
                73.15          6.27        1.2937   -2   6   1         2
                73.28          2.75        1.2919    2   6   0         2
                73.52          3.00        1.2882    0   6   3         2
                74.86          2.58        1.2683   -3   3   4         2
                74.89          2.16        1.2680   -1   1   6         2
                75.50          1.47        1.2592   -2   6   2         2
                75.76          2.08        1.2555    1   3   5         2
                77.23          1.70        1.2353    3   5   0         2
                77.87          2.84        1.2267    4   2   0         2
                77.94          1.02        1.2257    1   5   4         2
                78.08          1.96        1.2239   -3   5   2         2
                78.38          2.59        1.2201    1   7   1         2
                78.82          2.26        1.2143    0   2   6         2
                80.01          2.91        1.1992   -1   7   2         2
                80.44          2.15        1.1939    3   5   1         2
                80.79          2.50        1.1896   -4   2   3         2
                80.84          1.46        1.1889    2   6   2         2
                80.88          1.10        1.1885    2   4   4         2
                81.74          1.50        1.1782    4   2   1         2
                82.13          2.02        1.1735   -3   5   3         2
                82.66          1.37        1.1674    1   7   2         2
                82.80          1.08        1.1658    2   2   5         2
                82.84          1.15        1.1653   -1   5   5         2
                82.89          2.02        1.1647    1   1   6         2
                83.15          1.08        1.1617   -4   0   4         1
                83.97          1.22        1.1524    3   1   4         2
                84.57          2.68        1.1458    4   0   2         1
                87.31          4.72        1.1167   -2   6   4         2
                87.82          1.24        1.1116    0   8   1         2
                88.08          1.65        1.1090    4   4   0         2
                88.14          3.58        1.1084    2   6   3         2
                89.01          1.93        1.0998    0   4   6         2
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.