Columbite-(Mn)
      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: KRA n4 Qm=0.565 from Kragero, Norway
      Note: Occupancies calculated assuming complete Fe/Mn disorder
      _database_code_amcsd 0003860

      CELL PARAMETERS:   14.3250   5.7440   5.1130   90.000   90.000   90.000
      SPACE GROUP: Pbcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    420.712
      Density (g/cm3):      5.462
      MAX. ABS. INTENSITY / VOLUME**2:      120.1830204    
      RIR:      7.164
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.36          1.95        7.1625    2   0   0         2
                24.12          2.70        3.6902    1   1   1         8
                24.24         27.75        3.6719    3   1   0         4
                24.86          1.41        3.5812    4   0   0         2
                29.96        100.00        2.9825    3   1   1         8
                31.14          8.63        2.8720    0   2   0         2
                35.10         13.37        2.5565    0   0   2         2
                35.86         14.92        2.5040    0   2   1         4
                37.68          6.90        2.3875    6   0   0         2
                40.00          2.82        2.2538    3   0   2         4
                40.69          5.22        2.2176    3   2   1         8
                43.12          8.19        2.0981    3   1   2         8
                47.62          6.47        1.9096    0   2   2         4
                49.66          5.92        1.8360    6   2   0         4
                51.42         13.16        1.7771    3   3   0         4
                52.44         16.12        1.7449    6   0   2         4
                52.99         21.22        1.7279    6   2   1         8
                59.83         13.03        1.5459    3   1   3         8
                62.26          4.45        1.4912    6   2   2         8
                63.30         10.95        1.4692    9   1   1         8
                63.47          7.50        1.4657    0   2   3         4
                63.78         11.83        1.4592    3   3   2         8
                67.78          5.05        1.3825    0   4   1         4
                71.76          2.06        1.3153    9   1   2         8
                74.19          1.43        1.2782    0   0   4         2
                76.22          2.10        1.2491    6   2   3         8
                78.08          2.78        1.2240    9   3   0         4
                79.38          1.17        1.2072    3   1   4         8
                80.24          5.15        1.1964    6   4   1         8
                80.45          2.14        1.1938   12   0   0         2
                85.09          3.42        1.1401    9   1   3         8
                86.33          2.96        1.1269    6   0   4         4
                87.29          1.17        1.1169    3   5   0         4
                88.58          4.66        1.1040    9   3   2         8
                89.18          1.81        1.0982    0   4   3         4
                89.90          2.08        1.0912    3   5   1         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.