Cohenite
      Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J
      Journal of Applied Crystallography 37 (2004) 82-90
      Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K
      determined by time-of-flight neutron powder diffraction
      Note: T = 40 K
      Locality: synthetic
      _database_code_amcsd 0019100

      CELL PARAMETERS:    5.0820   6.7340   6.5120   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    222.855
      Density (g/cm3):      5.351
      MAX. ABS. INTENSITY / VOLUME**2:      32.73217293    
      RIR:      1.992
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.96          4.38        4.6812    0   1   1         4
                25.88          1.15        3.4431    1   1   1         8
                26.47          3.28        3.3670    0   2   0         2
                27.39         46.90        3.2560    0   0   2         2
                32.66        100.00        2.7416    1   0   2         4
                34.81         28.54        2.5776    1   2   1         8
                35.32          2.11        2.5410    2   0   0         2
                35.35         79.81        2.5392    1   1   2         8
                37.84         12.90        2.3774    2   1   0         4
                38.01         17.54        2.3672    2   0   1         4
                38.46          4.82        2.3406    0   2   2         4
                40.39         49.00        2.2332    2   1   1         8
                42.52         34.10        2.1260    1   2   2         8
                42.60         81.15        2.1221    0   3   1         4
                44.68         49.87        2.0282    2   2   0         4
                45.27          1.33        2.0032    2   0   2         4
                46.37         22.16        1.9583    1   3   1         8
                46.92         39.77        1.9365    2   2   1         8
                47.35          6.13        1.9200    2   1   2         8
                47.51          4.88        1.9139    1   1   3         8
                52.70          1.64        1.7368    1   3   2         8
                53.21         10.60        1.7215    2   2   2         8
                53.35         36.82        1.7171    1   2   3         8
                54.51          6.35        1.6835    0   4   0         2
                54.55          6.50        1.6823    2   3   0         4
                56.10         11.57        1.6394    3   0   1         4
                56.53          6.88        1.6280    0   0   4         2
                57.89          2.82        1.5929    3   1   1         8
                59.57          1.30        1.5520    1   4   1         8
                59.64         14.99        1.5504    1   0   4         4
                61.36          6.54        1.5109    1   1   4         8
                62.10          1.22        1.4946    2   3   2         8
                62.24         23.70        1.4917    1   3   3         8
                66.38          5.78        1.4083    1   2   4         8
                66.64          1.62        1.4034    2   4   0         4
                68.36          4.12        1.3723    3   2   2         8
                70.05          1.42        1.3432    2   1   4         8
                70.52         16.68        1.3355    3   0   3         4
                71.54          1.74        1.3189    0   5   1         4
                72.10          2.35        1.3099    3   1   3         8
                73.60          3.20        1.2869    1   4   3         8
                74.30          1.94        1.2766    1   5   1         8
                74.78          4.34        1.2696    2   2   4         8
                76.25         15.88        1.2488    3   3   2         8
                76.37          9.59        1.2470    4   0   1         4
                76.78          1.44        1.2414    3   2   3         8
                77.91          1.36        1.2261    4   1   1         8
                79.25          7.81        1.2088    1   5   2         8
                80.76          4.27        1.1900    2   5   0         4
                82.38          9.45        1.1706    2   5   1         8
                82.49          1.17        1.1694    4   2   1         8
                83.39          1.18        1.1590    2   0   5         4
                84.90          3.97        1.1422    2   1   5         8
                86.37          7.22        1.1265    0   3   5         4
                86.77          2.57        1.1223    0   6   0         2
                87.22          2.06        1.1177    2   5   2         8
                87.34          5.61        1.1165    1   5   3         8
                88.14          1.86        1.1084    3   2   4         8
                88.41          6.11        1.1057    4   3   0         4
                89.01          1.60        1.0998    1   3   5         8
                89.41          3.09        1.0959    2   2   5         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.