data_global _chemical_name_mineral 'Barioferrite' loop_ _publ_author_name 'Townes W D' 'Fang J H' 'Perrotta A J' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 125 _journal_year 1967 _journal_page_first 437 _journal_page_last 449 _publ_section_title ; The crystal structure and refinement of ferrimagnetic barium ferrite, BaFe12O19 ; _database_code_amcsd 0010651 _chemical_formula_sum 'Ba Fe12 O19' _cell_length_a 5.893 _cell_length_b 5.893 _cell_length_c 23.194 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 697.556 _exptl_crystal_density_diffrn 5.292 _symmetry_space_group_name_H-M 'P 63/m m c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' '-y,-x,z' 'y,x,-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x,x-y,z' '-x,-x+y,-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,1/2-z' 'y,-x+y,1/2+z' '-x+y,y,z' 'x-y,-y,-z' '-x,-y,-z' 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 Ba 0.33333 0.66667 0.25000 1.00000 0.00393 Fe1 0.00000 0.00000 0.00000 1.00000 0.00253 Fe2 0.00000 0.00000 0.25670 0.50000 0.00456 Fe3 0.66667 0.33333 0.02720 1.00000 0.00266 Fe4 0.66667 0.33333 0.19020 1.00000 0.00279 Fe5 0.16870 0.33740 0.10830 1.00000 0.00291 O1 0.00000 0.00000 0.15010 1.00000 0.00367 O2 0.33333 0.66667 0.05460 1.00000 0.00583 O3 0.81590 0.63180 0.25000 1.00000 0.00557 O4 0.84470 0.68940 0.05220 1.00000 0.00393 O5 0.49670 0.99340 0.14950 1.00000 0.00519