Pentlandite Tsukimura K, Nakazawa H, Endo T, Fukunaga O Physics and Chemistry of Minerals 19 (1992) 203-212 Cation distribution in Pentlandites (Fe,Ni)9S8: dependence of pressure and temperature and kinetics of the cation exchange reaction Sample: Naturalb, Fe/(Fe+Ni) = .491, T = 293 K, P = 0 GPa Note: structure was not refined in this study _database_code_amcsd 0007724 10.051 10.051 10.051 90 90 90 Fm3m atom x y z occ Fe1 .5 .5 .5 .723 Ni1 .5 .5 .5 .277 Fe2 .125 .125 .125 .462 Ni2 .125 .125 .125 .538 S1 .25 .25 .25 S2 .25 0 0