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 = 100 K
      Locality: synthetic
      _database_code_amcsd 0019103

      CELL PARAMETERS:    5.0820   6.7360   6.5120   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    222.921
      Density (g/cm3):      5.349
      MAX. ABS. INTENSITY / VOLUME**2:      33.88390980    
      RIR:      2.063
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.96          4.11        4.6819    0   1   1         4
                25.87          1.41        3.4434    1   1   1         8
                26.46          2.82        3.3680    0   2   0         2
                27.39         46.49        3.2560    0   0   2         2
                32.66        100.00        2.7416    1   0   2         4
                34.80         27.14        2.5781    1   2   1         8
                35.32          2.05        2.5410    2   0   0         2
                35.35         78.41        2.5393    1   1   2         8
                37.84         13.57        2.3775    2   1   0         4
                38.01         16.87        2.3672    2   0   1         4
                38.46          3.69        2.3409    0   2   2         4
                40.39         49.51        2.2333    2   1   1         8
                42.52         33.60        2.1262    1   2   2         8
                42.59         82.59        2.1227    0   3   1         4
                44.67         49.01        2.0285    2   2   0         4
                45.27          1.01        2.0032    2   0   2         4
                46.36         23.15        1.9587    1   3   1         8
                46.91         40.08        1.9367    2   2   1         8
                47.34          6.52        1.9201    2   1   2         8
                47.51          5.00        1.9139    1   1   3         8
                52.69          1.41        1.7371    1   3   2         8
                53.20         10.87        1.7217    2   2   2         8
                53.35         37.38        1.7172    1   2   3         8
                54.49          5.96        1.6840    0   4   0         2
                54.54          6.78        1.6826    2   3   0         4
                56.10         11.76        1.6394    3   0   1         4
                56.53          7.07        1.6280    0   0   4         2
                57.89          2.92        1.5929    3   1   1         8
                59.55          1.32        1.5524    1   4   1         8
                59.64         15.24        1.5504    1   0   4         4
                61.36          7.36        1.5109    1   1   4         8
                62.09          1.13        1.4948    2   3   2         8
                62.23         25.32        1.4919    1   3   3         8
                66.38          5.46        1.4083    1   2   4         8
                66.62          1.87        1.4037    2   4   0         4
                68.35          4.25        1.3724    3   2   2         8
                70.05          1.50        1.3433    2   1   4         8
                70.52         17.59        1.3355    3   0   3         4
                71.51          1.73        1.3193    0   5   1         4
                72.10          2.61        1.3100    3   1   3         8
                73.59          3.61        1.2872    1   4   3         8
                74.27          2.08        1.2769    1   5   1         8
                74.77          4.34        1.2697    2   2   4         8
                76.24         17.15        1.2489    3   3   2         8
                76.37         10.35        1.2470    4   0   1         4
                76.78          1.49        1.2414    3   2   3         8
                77.91          1.45        1.2262    4   1   1         8
                79.23          8.30        1.2091    1   5   2         8
                80.74          4.63        1.1903    2   5   0         4
                81.46          1.26        1.1815    1   2   5         8
                82.36         10.08        1.1709    2   5   1         8
                82.48          1.11        1.1694    4   2   1         8
                83.39          1.37        1.1590    2   0   5         4
                84.90          4.24        1.1422    2   1   5         8
                86.36          8.04        1.1266    0   3   5         4
                86.74          3.02        1.1227    0   6   0         2
                87.20          2.23        1.1179    2   5   2         8
                87.32          5.96        1.1167    1   5   3         8
                88.14          2.12        1.1084    3   2   4         8
                88.40          6.89        1.1058    4   3   0         4
                89.00          1.67        1.0999    1   3   5         8
                89.41          3.45        1.0959    2   2   5         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.