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 = 340 K
      Locality: synthetic
      _database_code_amcsd 0019115

      CELL PARAMETERS:    5.0810   6.7560   4.5170   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    155.056
      Density (g/cm3):      7.690
      MAX. ABS. INTENSITY / VOLUME**2:      47.78720876    
      RIR:      2.023
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.69          3.30        3.7550    0   1   1         4
                26.38          3.45        3.3780    0   2   0         2
                29.58          1.89        3.0198    1   1   1         8
                35.33          3.13        2.5405    2   0   0         2
                37.67         29.08        2.3879    1   2   1         8
                37.83         19.90        2.3779    2   1   0         4
                39.92         23.12        2.2585    0   0   2         2
                40.75         18.37        2.2143    2   0   1         4
                42.98         59.19        2.1042    2   1   1         8
                43.87         58.69        2.0638    1   0   2         4
                44.63         70.20        2.0304    2   2   0         4
                44.98        100.00        2.0154    0   3   1         4
                45.98         47.12        1.9738    1   1   2         8
                48.49          1.88        1.8775    0   2   2         4
                48.60         28.89        1.8734    1   3   1         8
                49.20         46.98        1.8519    2   2   1         8
                51.92         23.29        1.7611    1   2   2         8
                54.31          7.81        1.6890    0   4   0         2
                54.45          9.67        1.6852    2   3   0         4
                56.17          5.12        1.6376    2   1   2         8
                58.17         14.08        1.5859    3   0   1         4
                58.45          1.15        1.5789    2   3   1         8
                59.91          3.84        1.5439    3   1   1         8
                60.89          1.06        1.5215    1   3   2         8
                61.38          1.59        1.5105    1   4   1         8
                61.40          9.03        1.5099    2   2   2         8
                66.20          2.10        1.4117    1   1   3         8
                66.47          2.93        1.4065    2   4   0         4
                71.01         17.25        1.3275    1   2   3         8
                73.10          2.05        1.2945    0   5   1         4
                75.62          4.07        1.2576    3   2   2         8
                75.84          2.56        1.2544    1   5   1         8
                78.17         13.09        1.2228    4   0   1         4
                78.74         14.72        1.2153    1   3   3         8
                79.69          1.72        1.2033    4   1   1         8
                80.51          6.02        1.1930    2   5   0         4
                83.21         17.04        1.1610    3   3   2         8
                83.64          1.00        1.1561    3   4   1         8
                83.88         12.71        1.1534    2   5   1         8
                84.21          1.23        1.1498    4   2   1         8
                85.99          8.28        1.1305    1   5   2         8
                86.11          2.01        1.1293    0   0   4         2
                86.42          4.44        1.1260    0   6   0         2
                86.48         11.39        1.1253    3   0   3         4
                87.98          1.86        1.1100    3   1   3         8
                88.34          9.32        1.1064    4   3   0         4
                88.75          4.86        1.1024    1   0   4         4
                89.26          2.70        1.0974    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.