Vonsenite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R050477
      Swinnea J S, Steinfink H
      American Mineralogist 68 (1983) 827-832
      Crystal structure and Mossbauer spectrum of vonsenite, 2FeO*FeBO3

      CELL PARAMETERS:   9.329383   12.28245   3.059099   90.00000   90.00000   90.00000
      SPACE GROUP: Pbam
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                11.91          3.70        7.4292    1   1   0
                14.42          2.45        6.1412    0   2   0
                17.28         56.32        5.1296    1   2   0
                19.02         17.23        4.6647    2   0   0
                23.72          8.09        3.7490    1   3   0
                29.07          2.78        3.0706    0   4   0
                29.18          2.23        3.0591    0   0   1
                29.62          3.69        3.0147    3   1   0
                30.64          3.28        2.9167    1   4   0
                31.61         19.50        2.8287    1   1   1
                32.25          7.72        2.7744    3   2   0
                32.69         13.91        2.7382    0   2   1
                34.96        100.00        2.5648    2   4   0
                35.06         84.36        2.5581    2   0   1
                36.25          2.05        2.4764    3   3   0
                37.85          2.21        2.3755    1   5   0
                37.94         23.16        2.3702    1   3   1
                38.09         14.81        2.3614    2   2   1
                38.58         20.35        2.3323    4   0   0
                41.52         10.70        2.1735    2   5   0
                41.60          2.53        2.1694    2   3   1
                41.65         16.60        2.1672    0   4   1
                42.05         21.42        2.1472    3   1   1
                44.04         31.74        2.0551    3   2   1
                45.33          7.13        1.9995    1   6   0
                47.12          4.23        1.9276    3   5   0
                47.19         33.97        1.9248    3   3   1
                48.53          3.74        1.8745    2   6   0
                49.01          5.95        1.8573    4   4   0
                51.13          4.60        1.7853    5   2   0
                51.43         12.66        1.7755    4   2   1
                51.35          1.63        1.7780    3   4   1
                53.07          3.62        1.7244    1   7   0
                53.56          2.04        1.7099    3   6   0
                54.81          4.69        1.6737    1   6   1
                57.63          7.00        1.5983    2   6   1
                58.06         26.35        1.5876    4   4   1
                58.38          1.62        1.5797    5   1   1
                59.40          1.69        1.5549    6   0   0
                59.95          9.23        1.5419    5   2   1
                60.24          7.32        1.5353    0   8   0
                60.49         21.73        1.5295    0   0   2
                60.55          2.07        1.5282    3   7   0
                61.13          1.50        1.5149    1   8   0
                61.71         26.40        1.5022    1   7   1
                62.15          4.50        1.4925    3   6   1
                62.46          2.14        1.4858    5   5   0
                62.52         15.82        1.4845    5   3   1
                63.41          2.97        1.4658    1   2   2
                64.02          1.13        1.4534    2   0   2
                67.47         17.78        1.3872    6   4   0
                67.53          3.61        1.3861    6   0   1
                68.60          5.59        1.3671    3   7   1
                69.47          1.95        1.3521    6   2   1
                69.15          1.92        1.3576    1   8   1
                69.57          1.20        1.3503    1   9   0
                70.22          1.47        1.3395    3   2   2
                71.63          4.24        1.3164    2   8   1
                72.52          1.84        1.3025    7   2   0
                71.81         18.56        1.3137    2   4   2
                73.84          4.72        1.2824    4   8   0
                74.07          5.46        1.2790    4   0   2
                76.03          1.73        1.2509    2   5   2
                76.11          1.22        1.2497    3   9   0
                78.63          1.83        1.2158    7   1   1
                78.71          1.94        1.2149    1   6   2
                80.02          1.15        1.1982    3   5   2
                81.09          1.18        1.1851    2   6   2
                81.45          1.77        1.1807    4   4   2
                81.56          2.70        1.1794    5   7   1
                82.29          1.57        1.1708    7   3   1
                82.69          5.21        1.1662    8   0   0
                83.09          1.61        1.1615    5   2   2
                84.63          1.47        1.1443    1   7   2
                90.28          2.60        1.0868    4  10   0
                90.28          2.60        1.0868    4  10   0
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.