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 = 140 K
      Locality: synthetic
      _database_code_amcsd 0019105

      CELL PARAMETERS:    5.0820   6.7400   4.5120   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    154.548
      Density (g/cm3):      7.715
      MAX. ABS. INTENSITY / VOLUME**2:      48.17574684    
      RIR:      2.033
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.73          3.32        3.7494    0   1   1         4
                26.45          4.24        3.3700    0   2   0         2
                29.61          1.41        3.0171    1   1   1         8
                35.32          3.25        2.5410    2   0   0         2
                37.73         32.13        2.3844    1   2   1         8
                37.84         19.77        2.3776    2   1   0         4
                39.96         23.27        2.2560    0   0   2         2
                40.75         19.65        2.2140    2   0   1         4
                43.00         58.91        2.1035    2   1   1         8
                43.91         59.26        2.0620    1   0   2         4
                44.66         72.67        2.0289    2   2   0         4
                45.08        100.00        2.0111    0   3   1         4
                46.03         48.97        1.9718    1   1   2         8
                48.56          2.81        1.8747    0   2   2         4
                48.69         28.18        1.8700    1   3   1         8
                49.24         49.17        1.8504    2   2   1         8
                51.99         24.05        1.7588    1   2   2         8
                54.38          1.02        1.6870    2   0   2         4
                54.45          8.84        1.6850    0   4   0         2
                54.52          9.56        1.6831    2   3   0         4
                56.21          4.84        1.6365    2   1   2         8
                58.17         14.86        1.5859    3   0   1         4
                58.53          1.18        1.5770    2   3   1         8
                59.92          3.90        1.5438    3   1   1         8
                60.99          1.34        1.5191    1   3   2         8
                61.46          9.23        1.5086    2   2   2         8
                61.51          1.83        1.5075    1   4   1         8
                66.28          2.07        1.4102    1   1   3         8
                66.59          2.67        1.4043    2   4   0         4
                69.70          1.19        1.3490    2   3   2         8
                71.10         18.26        1.3259    1   2   3         8
                73.29          2.38        1.2916    0   5   1         4
                75.67          4.59        1.2569    3   2   2         8
                76.03          2.75        1.2518    1   5   1         8
                78.16         14.03        1.2229    4   0   1         4
                78.87         15.45        1.2136    1   3   3         8
                79.68          1.81        1.2033    4   1   1         8
                80.69          6.75        1.1908    2   5   0         4
                80.85          1.03        1.1888    4   2   0         4
                83.30         18.30        1.1601    3   3   2         8
                83.76          1.31        1.1549    3   4   1         8
                84.07         13.94        1.1514    2   5   1         8
                84.23          1.57        1.1496    4   2   1         8
                86.20          9.16        1.1283    1   5   2         8
                86.23          2.25        1.1280    0   0   4         2
                86.54         12.47        1.1247    3   0   3         4
                86.67          4.37        1.1233    0   6   0         2
                88.04          2.01        1.1094    3   1   3         8
                88.39         10.14        1.1059    4   3   0         4
                88.87          5.38        1.1012    1   0   4         4
                89.44          2.68        1.0957    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.