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 = 540 K
      Locality: synthetic
      _database_code_amcsd 0019125

      CELL PARAMETERS:    5.0820   6.7720   4.5220   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    155.626
      Density (g/cm3):      7.662
      MAX. ABS. INTENSITY / VOLUME**2:      45.70562154    
      RIR:      1.942
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.66          3.79        3.7607    0   1   1         4
                26.32          4.01        3.3860    0   2   0         2
                29.55          1.71        3.0230    1   1   1         8
                35.32          4.05        2.5410    2   0   0         2
                37.61         26.66        2.3915    1   2   1         8
                37.82         17.91        2.3790    2   1   0         4
                39.87         25.16        2.2610    0   0   2         2
                40.73         16.56        2.2152    2   0   1         4
                42.96         61.01        2.1054    2   1   1         8
                43.82         57.95        2.0658    1   0   2         4
                44.58         76.66        2.0324    2   2   0         4
                44.88        100.00        2.0197    0   3   1         4
                45.93         45.61        1.9759    1   1   2         8
                48.41          2.43        1.8803    0   2   2         4
                48.50         27.61        1.8769    1   3   1         8
                49.15         45.06        1.8537    2   2   1         8
                51.85         23.77        1.7635    1   2   2         8
                54.18          8.71        1.6930    0   4   0         2
                54.31          1.08        1.6891    2   0   2         4
                54.36          8.45        1.6876    2   3   0         4
                56.12          5.10        1.6389    2   1   2         8
                58.15         12.57        1.5863    3   0   1         4
                58.36          1.56        1.5811    2   3   1         8
                59.88          4.18        1.5445    3   1   1         8
                60.78          1.48        1.5240    1   3   2         8
                61.24          1.32        1.5136    1   4   1         8
                61.33          9.91        1.5115    2   2   2         8
                66.11          2.03        1.4133    1   1   3         8
                66.35          2.61        1.4089    2   4   0         4
                70.90         16.23        1.3291    1   2   3         8
                72.91          2.14        1.2975    0   5   1         4
                75.55          4.39        1.2586    3   2   2         8
                75.65          2.36        1.2571    1   5   1         8
                78.14         12.49        1.2231    4   0   1         4
                78.61         13.63        1.2171    1   3   3         8
                79.65          1.36        1.2037    4   1   1         8
                80.33          5.14        1.1952    2   5   0         4
                83.11         14.70        1.1622    3   3   2         8
                83.70         12.83        1.1555    2   5   1         8
                84.16          1.25        1.1504    4   2   1         8
                85.79          7.38        1.1327    1   5   2         8
                85.99          1.57        1.1305    0   0   4         2
                86.16          3.93        1.1287    0   6   0         2
                86.41         10.13        1.1261    3   0   3         4
                87.90          1.78        1.1108    3   1   3         8
                88.26          8.13        1.1072    4   3   0         4
                88.63          4.86        1.1035    1   0   4         4
                89.08          2.46        1.0991    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.