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 = 280 K
      Locality: synthetic
      _database_code_amcsd 0019112

      CELL PARAMETERS:    5.0820   6.7530   4.5140   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    154.915
      Density (g/cm3):      7.697
      MAX. ABS. INTENSITY / VOLUME**2:      48.03708856    
      RIR:      2.032
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.71          3.10        3.7528    0   1   1         4
                26.40          3.63        3.3765    0   2   0         2
                29.59          1.71        3.0189    1   1   1         8
                35.32          3.17        2.5410    2   0   0         2
                37.69         30.06        2.3870    1   2   1         8
                37.83         20.27        2.3782    2   1   0         4
                39.94         23.25        2.2570    0   0   2         2
                40.75         18.58        2.2143    2   0   1         4
                42.99         58.72        2.1041    2   1   1         8
                43.89         58.66        2.0627    1   0   2         4
                44.63         70.49        2.0303    2   2   0         4
                45.00        100.00        2.0144    0   3   1         4
                46.01         47.81        1.9727    1   1   2         8
                48.52          2.17        1.8764    0   2   2         4
                48.62         28.60        1.8727    1   3   1         8
                49.21         47.91        1.8516    2   2   1         8
                51.95         23.15        1.7602    1   2   2         8
                54.34          7.99        1.6882    0   4   0         2
                54.46          9.54        1.6849    2   3   0         4
                56.19          5.02        1.6371    2   1   2         8
                58.17         14.18        1.5860    3   0   1         4
                58.47          1.20        1.5786    2   3   1         8
                59.91          3.89        1.5440    3   1   1         8
                60.92          1.15        1.5208    1   3   2         8
                61.41          1.70        1.5099    1   4   1         8
                61.42          9.01        1.5094    2   2   2         8
                66.24          2.05        1.4109    1   1   3         8
                66.49          2.87        1.4062    2   4   0         4
                69.64          1.01        1.3502    2   3   2         8
                71.05         17.42        1.3267    1   2   3         8
                73.14          2.15        1.2939    0   5   1         4
                75.63          4.26        1.2574    3   2   2         8
                75.88          2.59        1.2539    1   5   1         8
                78.15         13.45        1.2230    4   0   1         4
                78.79         15.06        1.2147    1   3   3         8
                79.68          1.70        1.2034    4   1   1         8
                80.54          6.30        1.1926    2   5   0         4
                83.23         17.38        1.1608    3   3   2         8
                83.66          1.06        1.1559    3   4   1         8
                83.92         13.02        1.1530    2   5   1         8
                84.20          1.30        1.1499    4   2   1         8
                86.04          8.54        1.1299    1   5   2         8
                86.18          2.09        1.1285    0   0   4         2
                86.46          4.44        1.1255    0   6   0         2
                86.52         11.68        1.1250    3   0   3         4
                88.01          1.96        1.1097    3   1   3         8
                88.34          9.66        1.1064    4   3   0         4
                88.82          5.03        1.1017    1   0   4         4
                89.32          2.69        1.0968    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.