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 5.082 6.747 4.513 90 90 90 Pnma atom x y z Uiso Fe1 .1842 .0579 .3323 .016 Fe2 .0341 .25 .8405 .016 C .8949 .25 .4493 .038