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 = 220 K
      Locality: synthetic
      _database_code_amcsd 0019109

      CELL PARAMETERS:    5.0820   6.7470   4.5130   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    154.743
      Density (g/cm3):      7.706
      MAX. ABS. INTENSITY / VOLUME**2:      46.98555189    
      RIR:      1.985
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.72          3.20        3.7512    0   1   1         4
                26.42          4.19        3.3735    0   2   0         2
                29.60          1.37        3.0181    1   1   1         8
                35.32          3.24        2.5410    2   0   0         2
                37.70         32.09        2.3858    1   2   1         8
                37.83         19.77        2.3779    2   1   0         4
                39.95         23.53        2.2565    0   0   2         2
                40.75         19.81        2.2142    2   0   1         4
                42.99         58.83        2.1038    2   1   1         8
                43.90         58.45        2.0623    1   0   2         4
                44.65         72.06        2.0297    2   2   0         4
                45.04        100.00        2.0129    0   3   1         4
                46.02         48.83        1.9723    1   1   2         8
                48.54          2.91        1.8756    0   2   2         4
                48.65         27.85        1.8714    1   3   1         8
                49.22         48.67        1.8511    2   2   1         8
                51.97         23.45        1.7596    1   2   2         8
                54.38          1.05        1.6872    2   0   2         4
                54.39          8.62        1.6868    0   4   0         2
                54.49          9.55        1.6841    2   3   0         4
                56.20          4.82        1.6368    2   1   2         8
                58.17         14.48        1.5860    3   0   1         4
                58.50          1.17        1.5778    2   3   1         8
                59.91          3.81        1.5439    3   1   1         8
                60.95          1.32        1.5200    1   3   2         8
                61.44          9.01        1.5090    2   2   2         8
                61.46          1.80        1.5088    1   4   1         8
                66.26          2.03        1.4106    1   1   3         8
                66.54          2.64        1.4053    2   4   0         4
                69.67          1.19        1.3497    2   3   2         8
                71.08         17.49        1.3263    1   2   3         8
                73.21          2.29        1.2928    0   5   1         4
                75.65          4.29        1.2572    3   2   2         8
                75.95          2.55        1.2529    1   5   1         8
                78.15         13.27        1.2230    4   0   1         4
                78.83         14.62        1.2142    1   3   3         8
                79.68          1.73        1.2034    4   1   1         8
                80.61          6.32        1.1918    2   5   0         4
                83.26         17.14        1.1605    3   3   2         8
                83.70          1.22        1.1554    3   4   1         8
                83.99         13.06        1.1523    2   5   1         8
                84.21          1.48        1.1497    4   2   1         8
                86.11          8.57        1.1292    1   5   2         8
                86.20          2.05        1.1283    0   0   4         2
                86.53         11.62        1.1248    3   0   3         4
                86.56          4.15        1.1245    0   6   0         2
                88.03          1.85        1.1095    3   1   3         8
                88.36          9.42        1.1062    4   3   0         4
                88.84          5.06        1.1014    1   0   4         4
                89.37          2.52        1.0963    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.