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 = 460 K
      Locality: synthetic
      _database_code_amcsd 0019121

      CELL PARAMETERS:    5.0770   6.7640   4.5180   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    155.152
      Density (g/cm3):      7.685
      MAX. ABS. INTENSITY / VOLUME**2:      48.15453196    
      RIR:      2.040
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.68          3.35        3.7570    0   1   1         4
                26.35          3.20        3.3820    0   2   0         2
                29.58          2.01        3.0200    1   1   1         8
                35.36          3.61        2.5385    2   0   0         2
                37.65         26.59        2.3890    1   2   1         8
                37.86         19.12        2.3766    2   1   0         4
                39.91         23.32        2.2590    0   0   2         2
                40.77         16.51        2.2131    2   0   1         4
                43.00         60.05        2.1034    2   1   1         8
                43.87         58.73        2.0639    1   0   2         4
                44.63         71.78        2.0302    2   2   0         4
                44.93        100.00        2.0174    0   3   1         4
                45.97         45.84        1.9741    1   1   2         8
                48.46          1.72        1.8785    0   2   2         4
                48.56         29.34        1.8748    1   3   1         8
                49.20         45.36        1.8518    2   2   1         8
                51.90         23.41        1.7618    1   2   2         8
                54.25          7.75        1.6910    0   4   0         2
                54.43          9.18        1.6857    2   3   0         4
                56.18          5.32        1.6374    2   1   2         8
                58.21         13.41        1.5848    3   0   1         4
                58.43          1.41        1.5794    2   3   1         8
                59.95          4.18        1.5430    3   1   1         8
                60.85          1.15        1.5224    1   3   2         8
                61.32          1.42        1.5119    1   4   1         8
                61.40          9.36        1.5100    2   2   2         8
                66.18          2.16        1.4120    1   1   3         8
                66.43          3.02        1.4073    2   4   0         4
                70.98         16.92        1.3279    1   2   3         8
                73.01          2.02        1.2960    0   5   1         4
                75.63          4.32        1.2573    3   2   2         8
                75.75          2.51        1.2557    1   5   1         8
                78.23         13.16        1.2219    4   0   1         4
                78.70         14.78        1.2159    1   3   3         8
                79.75          1.53        1.2025    4   1   1         8
                80.44          5.61        1.1939    2   5   0         4
                83.21         16.43        1.1610    3   3   2         8
                83.81         13.01        1.1542    2   5   1         8
                84.26          1.14        1.1492    4   2   1         8
                85.90          8.04        1.1314    1   5   2         8
                86.08          1.89        1.1295    0   0   4         2
                86.29          4.59        1.1273    0   6   0         2
                86.51         11.01        1.1250    3   0   3         4
                88.00          1.93        1.1098    3   1   3         8
                88.38          9.18        1.1060    4   3   0         4
                88.73          4.97        1.1025    1   0   4         4
                89.19          2.81        1.0980    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.