Gupeiite Kanematsu K Transactions of the Japan Institute of Metals 27 (1986) 225-232 Stability of crystal structure of (Fe,V)3M and (Fe,Ni)3M (M=Si,Ge,Sn) and its analysis based on rigid band model Locality: synthetic _database_code_amcsd 0019761 5.644 5.644 5.644 90 90 90 Fm3m atom x y z Fe1 .5 .5 .5 Fe2 .25 .25 .25 Si 0 0 0