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 = 20 K
      Locality: synthetic
      _database_code_amcsd 0019099

      CELL PARAMETERS:    5.0820   6.7330   6.5130   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    222.856
      Density (g/cm3):      5.351
      MAX. ABS. INTENSITY / VOLUME**2:      33.33880963    
      RIR:      2.029
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.96          4.29        4.6812    0   1   1         4
                25.88          1.06        3.4431    1   1   1         8
                26.48          3.33        3.3665    0   2   0         2
                27.39         47.38        3.2565    0   0   2         2
                32.66        100.00        2.7419    1   0   2         4
                34.81         28.57        2.5774    1   2   1         8
                35.32          2.26        2.5410    2   0   0         2
                35.35         80.05        2.5394    1   1   2         8
                37.84         12.93        2.3773    2   1   0         4
                38.01         17.38        2.3672    2   0   1         4
                38.46          5.13        2.3406    0   2   2         4
                40.39         49.75        2.2332    2   1   1         8
                42.52         34.62        2.1260    1   2   2         8
                42.61         82.35        2.1219    0   3   1         4
                44.68         51.32        2.0281    2   2   0         4
                45.27          1.50        2.0033    2   0   2         4
                46.37         22.48        1.9581    1   3   1         8
                46.92         40.66        1.9364    2   2   1         8
                47.34          6.25        1.9201    2   1   2         8
                47.50          4.94        1.9141    1   1   3         8
                52.71          1.80        1.7367    1   3   2         8
                53.21         11.18        1.7216    2   2   2         8
                53.35         37.84        1.7172    1   2   3         8
                54.52          6.67        1.6832    0   4   0         2
                54.55          6.56        1.6821    2   3   0         4
                56.10         11.90        1.6395    3   0   1         4
                56.52          7.05        1.6283    0   0   4         2
                57.89          2.99        1.5929    3   1   1         8
                59.57          1.38        1.5519    1   4   1         8
                59.63         15.96        1.5506    1   0   4         4
                61.35          6.79        1.5111    1   1   4         8
                62.11          1.30        1.4945    2   3   2         8
                62.24         25.01        1.4917    1   3   3         8
                66.37          6.32        1.4084    1   2   4         8
                66.65          1.68        1.4033    2   4   0         4
                68.36          4.57        1.3723    3   2   2         8
                70.04          1.49        1.3434    2   1   4         8
                70.51         17.76        1.3355    3   0   3         4
                71.55          1.90        1.3187    0   5   1         4
                72.10          2.60        1.3100    3   1   3         8
                73.60          3.42        1.2869    1   4   3         8
                74.31          2.09        1.2764    1   5   1         8
                74.77          4.69        1.2697    2   2   4         8
                76.25         17.01        1.2487    3   3   2         8
                76.37         10.48        1.2470    4   0   1         4
                76.78          1.57        1.2414    3   2   3         8
                77.91          1.42        1.2261    4   1   1         8
                79.26          8.47        1.2087    1   5   2         8
                80.77          4.67        1.1898    2   5   0         4
                81.46          1.06        1.1815    1   2   5         8
                82.05          1.11        1.1744    3   4   1         8
                82.39         10.53        1.1705    2   5   1         8
                82.49          1.31        1.1694    4   2   1         8
                83.37          1.24        1.1592    2   0   5         4
                84.88          4.39        1.1424    2   1   5         8
                86.36          7.92        1.1266    0   3   5         4
                86.78          2.82        1.1222    0   6   0         2
                87.23          2.30        1.1176    2   5   2         8
                87.35          6.27        1.1164    1   5   3         8
                88.13          2.15        1.1084    3   2   4         8
                88.42          6.84        1.1056    4   3   0         4
                89.00          1.87        1.0999    1   3   5         8
                89.40          3.41        1.0960    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.