data_global _chemical_name_mineral 'Magnesioferrite' loop_ _publ_author_name 'Blesa M C' 'Amador U' 'Moran E' 'Menendez N' 'Tornero J D' 'Rodriguez-Carvajal J' _journal_name_full 'Solid State Ionics' _journal_volume 63 _journal_year 1993 _journal_page_first 429 _journal_page_last 436 _publ_section_title ; Synthesis and characterization of nickel and magnesium ferrites obtained from alpha-NaFeO2 ; _database_code_amcsd 0015512 _chemical_formula_sum 'Mg1.55 Fe1.6 O4' _cell_length_a 8.3978 _cell_length_b 8.3978 _cell_length_c 8.3978 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 592.239 _exptl_crystal_density_diffrn 4.285 _symmetry_space_group_name_H-M 'F d -3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,y,1/2+z' '1/2+x,1/2+y,z' '3/4+z,3/4-x,1/4+y' '3/4+z,1/4-x,3/4+y' '1/4+z,3/4-x,3/4+y' '1/4+z,1/4-x,1/4+y' '-y,1/2+z,1/2-x' '-y,+z,-x' '1/2-y,1/2+z,-x' '1/2-y,+z,1/2-x' '3/4+x,3/4-y,1/4+z' '3/4+x,1/4-y,3/4+z' '1/4+x,3/4-y,3/4+z' '1/4+x,1/4-y,1/4+z' '-z,1/2+x,1/2-y' '-z,+x,-y' '1/2-z,1/2+x,-y' '1/2-z,+x,1/2-y' '3/4+y,3/4-z,1/4+x' '3/4+y,1/4-z,3/4+x' '1/4+y,3/4-z,3/4+x' '1/4+y,1/4-z,1/4+x' '-x,1/2+y,1/2-z' '-x,+y,-z' '1/2-x,1/2+y,-z' '1/2-x,+y,1/2-z' '1/2+x,-z,1/2-y' '1/2+x,1/2-z,-y' '+x,-z,-y' '+x,1/2-z,1/2-y' '3/4-z,3/4+y,1/4+x' '3/4-z,1/4+y,3/4+x' '1/4-z,3/4+y,3/4+x' '1/4-z,1/4+y,1/4+x' '1/2+y,-x,1/2-z' '1/2+y,1/2-x,-z' '+y,-x,-z' '+y,1/2-x,1/2-z' '3/4-x,3/4+z,1/4+y' '3/4-x,1/4+z,3/4+y' '1/4-x,3/4+z,3/4+y' '1/4-x,1/4+z,1/4+y' '1/2+z,-y,1/2-x' '1/2+z,1/2-y,-x' '+z,-y,-x' '+z,1/2-y,1/2-x' '3/4-y,3/4+x,1/4+z' '3/4-y,1/4+x,3/4+z' '1/4-y,3/4+x,3/4+z' '1/4-y,1/4+x,1/4+z' 'x,1/2+z,1/2+y' 'x,+z,+y' '1/2+x,1/2+z,+y' '1/2+x,+z,1/2+y' '1/4-z,3/4-y,3/4-x' '1/4-z,1/4-y,1/4-x' '3/4-z,3/4-y,1/4-x' '3/4-z,1/4-y,3/4-x' 'y,1/2+x,1/2+z' 'y,+x,+z' '1/2+y,1/2+x,+z' '1/2+y,+x,1/2+z' '1/4-x,3/4-z,3/4-y' '1/4-x,1/4-z,1/4-y' '3/4-x,3/4-z,1/4-y' '3/4-x,1/4-z,3/4-y' 'z,1/2+y,1/2+x' 'z,+y,+x' '1/2+z,1/2+y,+x' '1/2+z,+y,1/2+x' '1/4-y,3/4-x,3/4-z' '1/4-y,1/4-x,1/4-z' '3/4-y,3/4-x,1/4-z' '3/4-y,1/4-x,3/4-z' '3/4+z,1/4+x,3/4-y' '3/4+z,3/4+x,1/4-y' '1/4+z,1/4+x,1/4-y' '1/4+z,3/4+x,3/4-y' '-y,1/2-z,1/2+x' '-y,-z,+x' '1/2-y,1/2-z,+x' '1/2-y,-z,1/2+x' '3/4+x,1/4+y,3/4-z' '3/4+x,3/4+y,1/4-z' '1/4+x,1/4+y,1/4-z' '1/4+x,3/4+y,3/4-z' '-z,1/2-x,1/2+y' '-z,-x,+y' '1/2-z,1/2-x,+y' '1/2-z,-x,1/2+y' '3/4+y,1/4+z,3/4-x' '3/4+y,3/4+z,1/4-x' '1/4+y,1/4+z,1/4-x' '1/4+y,3/4+z,3/4-x' '-x,1/2-y,1/2+z' '-x,-y,+z' '1/2-x,1/2-y,+z' '1/2-x,-y,1/2+z' '1/4-z,3/4+x,3/4+y' '1/4-z,1/4+x,1/4+y' '3/4-z,3/4+x,1/4+y' '3/4-z,1/4+x,3/4+y' 'y,-z,-x' 'y,1/2-z,1/2-x' '1/2+y,-z,1/2-x' '1/2+y,1/2-z,-x' '1/4-x,3/4+y,3/4+z' '1/4-x,1/4+y,1/4+z' '3/4-x,3/4+y,1/4+z' '3/4-x,1/4+y,3/4+z' 'z,-x,-y' 'z,1/2-x,1/2-y' '1/2+z,-x,1/2-y' '1/2+z,1/2-x,-y' '1/4-y,3/4+z,3/4+x' '1/4-y,1/4+z,1/4+x' '3/4-y,3/4+z,1/4+x' '3/4-y,1/4+z,3/4+x' 'x,-y,-z' 'x,1/2-y,1/2-z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,-z' '1/2-x,1/2+z,-y' '1/2-x,+z,1/2-y' '-x,1/2+z,1/2-y' '-x,+z,-y' '1/4+z,3/4-y,3/4+x' '1/4+z,1/4-y,1/4+x' '3/4+z,3/4-y,1/4+x' '3/4+z,1/4-y,3/4+x' '1/2-y,1/2+x,-z' '1/2-y,+x,1/2-z' '-y,1/2+x,1/2-z' '-y,+x,-z' '1/4+x,3/4-z,3/4+y' '1/4+x,1/4-z,1/4+y' '3/4+x,3/4-z,1/4+y' '3/4+x,1/4-z,3/4+y' '1/2-z,1/2+y,-x' '1/2-z,+y,1/2-x' '-z,1/2+y,1/2-x' '-z,+y,-x' '1/4+y,3/4-x,3/4+z' '1/4+y,1/4-x,1/4+z' '3/4+y,3/4-x,1/4+z' '3/4+y,1/4-x,3/4+z' '-x,-z,y' '-x,1/2-z,1/2+y' '1/2-x,-z,1/2+y' '1/2-x,1/2-z,y' '3/4+z,3/4+y,1/4-x' '3/4+z,1/4+y,3/4-x' '1/4+z,3/4+y,3/4-x' '1/4+z,1/4+y,1/4-x' '-y,-x,z' '-y,1/2-x,1/2+z' '1/2-y,-x,1/2+z' '1/2-y,1/2-x,z' '3/4+x,3/4+z,1/4-y' '3/4+x,1/4+z,3/4-y' '1/4+x,3/4+z,3/4-y' '1/4+x,1/4+z,1/4-y' '-z,-y,x' '-z,1/2-y,1/2+x' '1/2-z,-y,1/2+x' '1/2-z,1/2-y,x' '3/4+y,3/4+x,1/4-z' '3/4+y,1/4+x,3/4-z' '1/4+y,3/4+x,3/4-z' '1/4+y,1/4+x,1/4-z' '1/4-z,1/4-x,1/4-y' '1/4-z,3/4-x,3/4-y' '3/4-z,1/4-x,3/4-y' '3/4-z,3/4-x,1/4-y' 'y,z,x' 'y,1/2+z,1/2+x' '1/2+y,z,1/2+x' '1/2+y,1/2+z,x' '1/4-x,1/4-y,1/4-z' '1/4-x,3/4-y,3/4-z' '3/4-x,1/4-y,3/4-z' '3/4-x,3/4-y,1/4-z' 'z,x,y' 'z,1/2+x,1/2+y' '1/2+z,x,1/2+y' '1/2+z,1/2+x,y' '1/4-y,1/4-z,1/4-x' '1/4-y,3/4-z,3/4-x' '3/4-y,1/4-z,3/4-x' '3/4-y,3/4-z,1/4-x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv MgA 0.00000 0.00000 0.00000 0.29000 0.00367 FeA 0.00000 0.00000 0.00000 0.71000 0.00899 MgB 0.62500 0.62500 0.62500 0.55500 0.00703 FeB 0.62500 0.62500 0.62500 0.44500 0.00564 Mg 0.12500 0.12500 0.12500 0.07500 0.00095 O 0.37910 0.37910 0.37910 1.00000 0.01634