Vonsenite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R050221
      Swinnea J S, Steinfink H
      American Mineralogist 68 (1983) 827-832
      Crystal structure and Mossbauer spectrum of vonsenite, 2FeO*FeBO3

      CELL PARAMETERS:   9.463000   12.30500   3.072700   90.00000   90.00000   90.00000
      SPACE GROUP: Pbam
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                11.94          3.70        7.5026    1   1   0
                14.55          2.45        6.1493    0   2   0
                17.33         56.32        5.1572    1   2   0
                18.88         17.23        4.7343    2   0   0
                23.78          8.09        3.7621    1   3   0
                29.17          2.78        3.0746    0   4   0
                29.19          2.23        3.0726    0   0   1
                29.34          3.69        3.0571    3   1   0
                30.70          3.28        2.9243    1   4   0
                31.59         19.50        2.8434    1   1   1
                32.00          7.72        2.8079    3   2   0
                32.70         13.91        2.7486    0   2   1
                34.92        100.00        2.5786    2   4   0
                34.93         84.36        2.5774    2   0   1
                36.03          2.05        2.5009    3   3   0
                37.91          2.21        2.3807    1   5   0
                37.92         23.16        2.3797    1   3   1
                37.97         14.81        2.3770    2   2   1
                38.13         20.35        2.3672    4   0   0
                41.48         10.70        2.1827    2   5   0
                41.50          2.53        2.1820    2   3   1
                41.67         16.60        2.1734    0   4   1
                41.79         21.42        2.1672    3   1   1
                43.78         31.74        2.0728    3   2   1
                45.38          7.13        2.0034    1   6   0
                46.94          4.23        1.9401    3   5   0
                46.95         33.97        1.9396    3   3   1
                48.50          3.74        1.8810    2   6   0
                48.65          5.95        1.8757    4   4   0
                50.53          4.60        1.8098    5   2   0
                51.02         12.66        1.7937    4   2   1
                51.13          1.63        1.7900    3   4   1
                53.12          3.62        1.7275    1   7   0
                53.39          2.04        1.7191    3   6   0
                54.80          4.69        1.6782    1   6   1
                57.54          7.00        1.6043    2   6   1
                57.67         26.35        1.6009    4   4   1
                57.77          1.62        1.5985    5   1   1
                58.59          1.69        1.5781    6   0   0
                59.35          9.23        1.5594    5   2   1
                60.29          7.32        1.5373    0   8   0
                60.34         21.73        1.5363    0   0   2
                60.39          2.07        1.5351    3   7   0
                61.16          1.50        1.5175    1   8   0
                61.69         26.40        1.5058    1   7   1
                61.94          4.50        1.5002    3   6   1
                61.93          2.14        1.5005    5   5   0
                61.94         15.82        1.5003    5   3   1
                63.24          2.97        1.4724    1   2   2
                63.78          1.13        1.4613    2   0   2
                66.70         17.78        1.4040    6   4   0
                66.71          3.61        1.4038    6   0   1
                68.39          5.59        1.3733    3   7   1
                68.66          1.95        1.3686    6   2   1
                69.12          1.92        1.3606    1   8   1
                69.59          1.20        1.3525    1   9   0
                69.87          1.47        1.3478    3   2   2
                71.54          4.24        1.3203    2   8   1
                71.49          1.84        1.3211    7   2   0
                71.57         18.56        1.3198    2   4   2
                73.53          4.72        1.2893    4   8   0
                73.57          5.46        1.2887    4   0   2
                75.79          1.73        1.2563    2   5   2
                75.95          1.22        1.2540    3   9   0
                77.57          1.83        1.2318    7   1   1
                78.53          1.94        1.2191    1   6   2
                79.67          1.15        1.2044    3   5   2
                80.84          1.18        1.1899    2   6   2
                80.95          1.77        1.1885    4   4   2
                81.01          2.70        1.1878    5   7   1
                81.23          1.57        1.1851    7   3   1
                81.36          5.21        1.1836    8   0   0
                82.40          1.61        1.1712    5   2   2
                84.44          1.47        1.1480    1   7   2
                89.94          2.60        1.0914    4  10   0
                89.94          2.60        1.0914    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.