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 = 500 K
      Locality: synthetic
      _database_code_amcsd 0019123

      CELL PARAMETERS:    5.0770   6.7670   4.5200   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    155.289
      Density (g/cm3):      7.679
      MAX. ABS. INTENSITY / VOLUME**2:      47.95370140    
      RIR:      2.033
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.67          3.04        3.7586    0   1   1         4
                26.34          3.46        3.3835    0   2   0         2
                29.57          1.59        3.0209    1   1   1         8
                35.36          4.28        2.5385    2   0   0         2
                37.64         26.69        2.3898    1   2   1         8
                37.85         18.58        2.3768    2   1   0         4
                39.89         24.03        2.2600    0   0   2         2
                40.77         15.66        2.2133    2   0   1         4
                43.00         60.21        2.1037    2   1   1         8
                43.85         58.22        2.0647    1   0   2         4
                44.63         74.48        2.0305    2   2   0         4
                44.91        100.00        2.0183    0   3   1         4
                45.96         46.18        1.9748    1   1   2         8
                48.44          2.53        1.8793    0   2   2         4
                48.54         28.52        1.8755    1   3   1         8
                49.19         44.84        1.8522    2   2   1         8
                51.88         22.96        1.7625    1   2   2         8
                54.22          8.15        1.6918    0   4   0         2
                54.35          1.21        1.6880    2   0   2         4
                54.41          8.37        1.6862    2   3   0         4
                56.16          5.20        1.6378    2   1   2         8
                58.21         12.84        1.5849    3   0   1         4
                58.42          1.82        1.5798    2   3   1         8
                59.94          4.53        1.5431    3   1   1         8
                60.82          1.55        1.5230    1   3   2         8
                61.29          1.51        1.5125    1   4   1         8
                61.38          9.64        1.5104    2   2   2         8
                66.15          2.13        1.4126    1   1   3         8
                66.41          2.85        1.4078    2   4   0         4
                70.95         16.65        1.3284    1   2   3         8
                72.97          2.19        1.2965    0   5   1         4
                75.62          4.91        1.2576    3   2   2         8
                75.71          2.40        1.2562    1   5   1         8
                78.23         13.36        1.2220    4   0   1         4
                78.66         14.88        1.2164    1   3   3         8
                79.74          1.30        1.2025    4   1   1         8
                80.41          5.48        1.1943    2   5   0         4
                83.19         15.79        1.1613    3   3   2         8
                83.77         13.56        1.1546    2   5   1         8
                84.25          1.22        1.1493    4   2   1         8
                85.86          7.96        1.1319    1   5   2         8
                86.04          1.80        1.1300    0   0   4         2
                86.24          4.47        1.1278    0   6   0         2
                86.48         10.74        1.1253    3   0   3         4
                87.97          2.08        1.1101    3   1   3         8
                88.36          9.17        1.1062    4   3   0         4
                88.68          5.29        1.1030    1   0   4         4
                89.14          2.75        1.0985    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.