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 = 440 K
      Locality: synthetic
      _database_code_amcsd 0019120

      CELL PARAMETERS:    5.0780   6.7630   4.5180   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    155.159
      Density (g/cm3):      7.685
      MAX. ABS. INTENSITY / VOLUME**2:      48.21841479    
      RIR:      2.043
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.68          3.52        3.7568    0   1   1         4
                26.36          3.30        3.3815    0   2   0         2
                29.58          1.90        3.0201    1   1   1         8
                35.35          3.46        2.5390    2   0   0         2
                37.65         26.55        2.3889    1   2   1         8
                37.85         19.73        2.3770    2   1   0         4
                39.91         23.77        2.2590    0   0   2         2
                40.77         16.72        2.2134    2   0   1         4
                43.00         59.37        2.1036    2   1   1         8
                43.86         58.53        2.0640    1   0   2         4
                44.63         70.92        2.0304    2   2   0         4
                44.94        100.00        2.0172    0   3   1         4
                45.97         45.37        1.9741    1   1   2         8
                48.46          1.70        1.8784    0   2   2         4
                48.56         28.96        1.8747    1   3   1         8
                49.20         46.49        1.8520    2   2   1         8
                51.90         23.08        1.7617    1   2   2         8
                54.25          7.82        1.6908    0   4   0         2
                54.43          9.12        1.6858    2   3   0         4
                56.17          5.46        1.6375    2   1   2         8
                58.20         13.27        1.5851    3   0   1         4
                58.43          1.32        1.5794    2   3   1         8
                59.94          4.10        1.5433    3   1   1         8
                60.85          1.07        1.5223    1   3   2         8
                61.32          1.39        1.5117    1   4   1         8
                61.40          9.44        1.5101    2   2   2         8
                66.18          2.09        1.4120    1   1   3         8
                66.43          2.94        1.4073    2   4   0         4
                70.98         17.01        1.3279    1   2   3         8
                73.02          2.02        1.2958    0   5   1         4
                75.63          4.27        1.2574    3   2   2         8
                75.76          2.49        1.2555    1   5   1         8
                78.22         13.27        1.2222    4   0   1         4
                78.70         14.75        1.2158    1   3   3         8
                79.73          1.52        1.2027    4   1   1         8
                80.45          5.79        1.1938    2   5   0         4
                83.20         16.31        1.1611    3   3   2         8
                83.82         12.88        1.1542    2   5   1         8
                84.24          1.12        1.1494    4   2   1         8
                85.91          8.00        1.1313    1   5   2         8
                86.08          1.82        1.1295    0   0   4         2
                86.31          4.51        1.1272    0   6   0         2
                86.50         11.02        1.1251    3   0   3         4
                87.99          1.94        1.1099    3   1   3         8
                88.36          9.24        1.1062    4   3   0         4
                88.73          4.99        1.1026    1   0   4         4
                89.20          2.76        1.0980    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.