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 = 180 K
      Locality: synthetic
      _database_code_amcsd 0019107

      CELL PARAMETERS:    5.0820   6.7430   4.5120   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    154.617
      Density (g/cm3):      7.712
      MAX. ABS. INTENSITY / VOLUME**2:      47.85787950    
      RIR:      2.021
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.73          3.47        3.7499    0   1   1         4
                26.44          4.30        3.3715    0   2   0         2
                29.61          1.40        3.0174    1   1   1         8
                35.32          3.14        2.5410    2   0   0         2
                37.72         31.69        2.3849    1   2   1         8
                37.84         19.87        2.3778    2   1   0         4
                39.96         23.81        2.2560    0   0   2         2
                40.75         19.78        2.2140    2   0   1         4
                43.00         58.72        2.1036    2   1   1         8
                43.91         58.72        2.0620    1   0   2         4
                44.66         72.29        2.0292    2   2   0         4
                45.06        100.00        2.0119    0   3   1         4
                46.03         48.39        1.9718    1   1   2         8
                48.56          2.74        1.8750    0   2   2         4
                48.68         27.75        1.8706    1   3   1         8
                49.24         49.45        1.8507    2   2   1         8
                51.99         23.79        1.7591    1   2   2         8
                54.43          8.85        1.6858    0   4   0         2
                54.51          9.52        1.6835    2   3   0         4
                56.21          4.92        1.6366    2   1   2         8
                58.17         14.56        1.5859    3   0   1         4
                58.52          1.12        1.5773    2   3   1         8
                59.92          3.80        1.5438    3   1   1         8
                60.98          1.28        1.5194    1   3   2         8
                61.46          9.33        1.5087    2   2   2         8
                61.49          1.76        1.5080    1   4   1         8
                66.27          2.02        1.4103    1   1   3         8
                66.57          2.63        1.4047    2   4   0         4
                69.69          1.18        1.3493    2   3   2         8
                71.10         18.08        1.3260    1   2   3         8
                73.26          2.34        1.2921    0   5   1         4
                75.66          4.41        1.2570    3   2   2         8
                75.99          2.68        1.2523    1   5   1         8
                78.16         13.80        1.2229    4   0   1         4
                78.86         15.11        1.2138    1   3   3         8
                79.68          1.80        1.2033    4   1   1         8
                80.66          6.66        1.1912    2   5   0         4
                80.85          1.04        1.1889    4   2   0         4
                83.28         17.79        1.1602    3   3   2         8
                83.73          1.26        1.1551    3   4   1         8
                84.03         13.62        1.1518    2   5   1         8
                84.22          1.53        1.1496    4   2   1         8
                86.17          8.91        1.1286    1   5   2         8
                86.23          2.11        1.1280    0   0   4         2
                86.54         12.20        1.1247    3   0   3         4
                86.62          4.24        1.1238    0   6   0         2
                88.04          1.95        1.1094    3   1   3         8
                88.38          9.85        1.1060    4   3   0         4
                88.87          5.28        1.1012    1   0   4         4
                89.41          2.61        1.0959    1   4   3         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.