Columbite-(Fe)
      Wenger M, Armbruster T, Geiger C A
      American Mineralogist 76 (1991) 1897-1904
      Cation distribution in partially ordered columbite from the Kings Mountain
      pegmatite, North Carolina
      SAMPLE ncp1, T = 293 K
      _database_code_amcsd 0001436

      CELL PARAMETERS:   14.2210   5.7270   5.1020   90.000   90.000   90.000
      SPACE GROUP: Pbcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    415.526
      Density (g/cm3):      6.102
      MAX. ABS. INTENSITY / VOLUME**2:      153.9693878    
      RIR:      8.217
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.45          1.54        7.1105    2   0   0         2
                24.19          2.59        3.6798    1   1   1         8
                24.38         30.96        3.6517    3   1   0         4
                25.05          1.25        3.5552    4   0   0         2
                30.09        100.00        2.9695    3   1   1         8
                31.24          7.64        2.8635    0   2   0         2
                35.18         14.70        2.5510    0   0   2         2
                35.97         18.45        2.4971    0   2   1         4
                37.96          8.00        2.3702    6   0   0         2
                40.14          2.31        2.2464    3   0   2         4
                40.85          4.37        2.2093    3   2   1         8
                43.26          9.85        2.0913    3   1   2         8
                47.75          5.65        1.9048    0   2   2         4
                49.95          5.12        1.8258    6   2   0         4
                51.62         14.04        1.7708    3   3   0         4
                52.72         16.48        1.7364    6   0   2         4
                53.29         22.95        1.7191    6   2   1         8
                60.01         13.42        1.5417    3   1   3         8
                60.81          1.17        1.5232    9   1   0         4
                62.56          3.98        1.4847    6   2   2         8
                63.64          8.16        1.4622    0   2   3         4
                63.77         11.02        1.4595    9   1   1         8
                64.01         12.80        1.4547    3   3   2         8
                65.16          1.33        1.4318    0   4   0         2
                68.01          4.85        1.3785    0   4   1         4
                72.24          2.34        1.3078    9   1   2         8
                74.37          1.58        1.2755    0   0   4         2
                76.56          2.66        1.2445    6   2   3         8
                78.59          2.97        1.2172    9   3   0         4
                79.62          1.41        1.2042    3   1   4         8
                80.62          4.97        1.1916    6   4   1         8
                81.16          2.18        1.1851   12   0   0         2
                85.60          3.53        1.1346    9   1   3         8
                86.69          3.14        1.1232    6   0   4         4
                88.52          1.26        1.1047    6   4   2         8
                89.13          5.03        1.0986    9   3   2         8
                89.47          1.79        1.0953    0   4   3         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.