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=0.742 from Kragero, Norway
      Sample: Annealed at T = 530 C for t = 92 h
      Note: Occupancies calculated assuming complete Fe/Mn disorder
      _database_code_amcsd 0003862

      CELL PARAMETERS:   14.3340   5.7370   5.0960   90.000   90.000   90.000
      SPACE GROUP: Pbcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    419.065
      Density (g/cm3):      5.483
      MAX. ABS. INTENSITY / VOLUME**2:      122.1791154    
      RIR:      7.256
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.35          3.29        7.1670    2   0   0         2
                16.64          1.08        5.3262    1   1   0         4
                24.17          4.04        3.6821    1   1   1         8
                24.24         26.27        3.6715    3   1   0         4
                24.85          2.03        3.5835    4   0   0         2
                30.00        100.00        2.9789    3   1   1         8
                31.18          9.14        2.8685    0   2   0         2
                35.22         13.10        2.5480    0   0   2         2
                35.93         14.09        2.4997    0   2   1         4
                37.65          6.86        2.3890    6   0   0         2
                40.11          2.77        2.2483    3   0   2         4
                40.74          5.13        2.2149    3   2   1         8
                43.22          7.67        2.0933    3   1   2         8
                47.74          6.71        1.9050    0   2   2         4
                49.66          6.18        1.8357    6   2   0         4
                51.47         12.84        1.7754    3   3   0         4
                52.51         15.86        1.7428    6   0   2         4
                53.02         20.38        1.7271    6   2   1         8
                54.75          1.04        1.6766    3   3   1         8
                60.01         12.84        1.5417    3   1   3         8
                62.34          4.66        1.4894    6   2   2         8
                63.29         10.92        1.4694    9   1   1         8
                63.67          7.12        1.4616    0   2   3         4
                63.91         11.50        1.4567    3   3   2         8
                67.89          5.10        1.3806    0   4   1         4
                71.81          1.95        1.3146    9   1   2         8
                74.47          1.39        1.2740    0   0   4         2
                76.39          1.97        1.2468    6   2   3         8
                78.09          2.73        1.2238    9   3   0         4
                79.66          1.09        1.2036    3   1   4         8
                80.32          5.25        1.1954    6   4   1         8
                80.39          2.12        1.1945   12   0   0         2
                82.92          1.02        1.1643    0   2   4         4
                85.22          3.42        1.1387    9   1   3         8
                86.59          2.88        1.1241    6   0   4         4
                87.42          1.29        1.1157    3   5   0         4
                88.67          4.53        1.1032    9   3   2         8
                89.41          1.84        1.0959    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.