Columbite-(Fe)
      Tarantino S C, Zema M
      American Mineralogist 90 (2005) 1291-1300
      Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution:
      A single-crystal X-ray diffraction study
      Sample: AMB n3 Qm=1 from Ambatofotsikely, Madagascar
      _database_code_amcsd 0003848

      CELL PARAMETERS:   14.3267   5.7392   5.0674   90.000   90.000   90.000
      SPACE GROUP: Pbcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    416.661
      Density (g/cm3):      5.421
      MAX. ABS. INTENSITY / VOLUME**2:      119.3065779    
      RIR:      7.166
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.36          4.90        7.1634    2   0   0         2
                16.64          1.47        5.3276    1   1   0         4
                24.24          7.22        3.6717    1   1   1         8
                24.25         25.96        3.6709    3   1   0         4
                24.86          3.68        3.5817    4   0   0         2
                30.06        100.00        2.9728    3   1   1         8
                31.17          9.41        2.8696    0   2   0         2
                35.43         12.97        2.5337    0   0   2         2
                35.97         13.49        2.4970    0   2   1         4
                37.67          6.55        2.3878    6   0   0         2
                40.29          2.95        2.2382    3   0   2         4
                40.78          5.42        2.2128    3   2   1         8
                43.39          7.41        2.0852    3   1   2         8
                44.22          1.22        2.0484    4   2   1         8
                47.89          6.91        1.8993    0   2   2         4
                49.67          6.31        1.8355    6   2   0         4
                50.66          1.72        1.8018    7   1   1         8
                51.46         12.83        1.7759    3   3   0         4
                52.67         15.79        1.7377    6   0   2         4
                53.07         20.37        1.7257    6   2   1         8
                54.77          1.21        1.6759    3   3   1         8
                60.32         13.00        1.5345    3   1   3         8
                62.48          4.78        1.4864    6   2   2         8
                63.35         10.83        1.4682    9   1   1         8
                63.96          7.28        1.4557    0   2   3         4
                64.03         11.52        1.4542    3   3   2         8
                67.89          5.26        1.3805    0   4   1         4
                71.96          1.93        1.3122    9   1   2         8
                74.97          1.39        1.2668    0   0   4         2
                76.67          1.84        1.2429    6   2   3         8
                78.10          2.68        1.2236    9   3   0         4
                80.14          1.10        1.1975    3   1   4         8
                80.34          5.35        1.1952    6   4   1         8
                80.44          2.11        1.1939   12   0   0         2
                83.39          1.09        1.1589    0   2   4         4
                85.51          3.41        1.1356    9   1   3         8
                87.08          3.01        1.1191    6   0   4         4
                87.38          1.38        1.1161    3   5   0         4
                88.80          4.54        1.1019    9   3   2         8
                89.66          1.91        1.0935    0   4   3         4
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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.