Columbite-(Fe)
      Tarantino S C, Zema M, Pistorino M, Domeneghetti M C
      Physics and Chemistry of Minerals 30 (2003) 590-598
      High-temperature X-ray investigation of natural columbites
      Note: sample BRA3 at T = 300 C
      Locality: San Jose de Safira, Minas Gerais, Brazil
      _database_code_amcsd 0008843

      CELL PARAMETERS:   14.3191   5.7482   5.0713   90.000   90.000   90.000
      SPACE GROUP: Pbcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    417.414
      Density (g/cm3):      5.483
      MAX. ABS. INTENSITY / VOLUME**2:      117.7898502    
      RIR:      6.995
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.36          5.18        7.1596    2   0   0         2
                16.62          1.50        5.3344    1   1   0         4
                24.22          8.00        3.6755    1   1   1         8
                24.24         26.27        3.6721    3   1   0         4
                24.87          4.07        3.5798    4   0   0         2
                30.04        100.00        2.9743    3   1   1         8
                31.12          9.37        2.8741    0   2   0         2
                35.40         13.00        2.5357    0   0   2         2
                35.92         13.71        2.5005    0   2   1         4
                37.69          6.51        2.3865    6   0   0         2
                40.27          2.68        2.2393    3   0   2         4
                40.74          4.93        2.2149    3   2   1         8
                43.37          7.28        2.0865    3   1   2         8
                43.75          1.10        2.0692    4   0   2         4
                44.18          1.20        2.0499    4   2   1         8
                47.84          6.28        1.9014    0   2   2         4
                49.65          5.63        1.8361    6   2   0         4
                50.67          1.85        1.8015    7   1   1         8
                51.39         11.75        1.7781    3   3   0         4
                52.67         14.20        1.7379    6   0   2         4
                53.04         18.39        1.7264    6   2   1         8
                60.27         11.31        1.5355    3   1   3         8
                62.45          4.08        1.4871    6   2   2         8
                63.37          9.07        1.4677    9   1   1         8
                63.89          6.17        1.4571    0   2   3         4
                63.95          9.95        1.4559    3   3   2         8
                67.78          4.35        1.3826    0   4   1         4
                71.97          1.53        1.3121    9   1   2         8
                74.90          1.14        1.2678    0   0   4         2
                76.62          1.55        1.2436    6   2   3         8
                78.07          2.11        1.2240    9   3   0         4
                80.24          4.11        1.1963    6   4   1         8
                80.49          1.58        1.1933   12   0   0         2
                85.50          2.57        1.1357    9   1   3         8
                87.03          2.22        1.1196    6   0   4         4
                87.22          1.00        1.1177    3   5   0         4
                88.75          3.28        1.1023    9   3   2         8
                89.52          1.42        1.0949    0   4   3         4
                89.87          1.32        1.0915    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.