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 = 580 K
      Locality: synthetic
      _database_code_amcsd 0019127

      CELL PARAMETERS:    5.0850   6.7760   4.5240   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    155.879
      Density (g/cm3):      7.650
      MAX. ABS. INTENSITY / VOLUME**2:      44.27249933    
      RIR:      1.885
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.65          3.55        3.7625    0   1   1         4
                26.31          4.38        3.3880    0   2   0         2
                29.53          1.44        3.0246    1   1   1         8
                35.30          4.75        2.5425    2   0   0         2
                37.59         27.63        2.3928    1   2   1         8
                37.79         17.49        2.3804    2   1   0         4
                39.85         25.19        2.2620    0   0   2         2
                40.71         15.89        2.2165    2   0   1         4
                42.93         61.46        2.1066    2   1   1         8
                43.80         58.42        2.0667    1   0   2         4
                44.56         80.01        2.0336    2   2   0         4
                44.85        100.00        2.0208    0   3   1         4
                45.91         46.70        1.9768    1   1   2         8
                48.38          3.25        1.8812    0   2   2         4
                48.47         27.40        1.8779    1   3   1         8
                49.12         44.41        1.8548    2   2   1         8
                51.82         23.75        1.7644    1   2   2         8
                54.14          9.14        1.6940    0   4   0         2
                54.28          1.58        1.6900    2   0   2         4
                54.33          7.80        1.6886    2   3   0         4
                56.09          4.82        1.6397    2   1   2         8
                58.12         12.29        1.5873    3   0   1         4
                58.33          1.90        1.5820    2   3   1         8
                59.85          4.48        1.5454    3   1   1         8
                60.74          1.87        1.5248    1   3   2         8
                61.20          1.42        1.5144    1   4   1         8
                61.30          9.81        1.5123    2   2   2         8
                66.08          1.97        1.4139    1   1   3         8
                66.30          2.42        1.4097    2   4   0         4
                70.87         15.66        1.3298    1   2   3         8
                72.86          2.24        1.2982    0   5   1         4
                75.50          4.80        1.2593    3   2   2         8
                75.60          2.26        1.2579    1   5   1         8
                78.09         12.22        1.2238    4   0   1         4
                78.56         13.28        1.2177    1   3   3         8
                79.60          1.15        1.2044    4   1   1         8
                80.27          4.86        1.1959    2   5   0         4
                83.05         13.88        1.1629    3   3   2         8
                83.45          1.05        1.1583    3   4   1         8
                83.64         12.84        1.1562    2   5   1         8
                84.10          1.28        1.1511    4   2   1         8
                85.73          7.14        1.1333    1   5   2         8
                85.94          1.54        1.1310    0   0   4         2
                86.10          3.70        1.1293    0   6   0         2
                86.35          9.54        1.1267    3   0   3         4
                87.84          1.80        1.1114    3   1   3         8
                88.19          7.77        1.1078    4   3   0         4
                88.58          4.83        1.1040    1   0   4         4
                89.02          2.32        1.0997    1   4   3         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.