data_global _chemical_name_mineral 'Sphaerobismoite' loop_ _publ_author_name 'Gattow G' 'Schutze D' _journal_name_full 'Zeitschrift fur Anorganische und Allgemeine Chemie' _journal_volume 328 _journal_year 1964 _journal_page_first 44 _journal_page_last 68 _publ_section_title ; Uber Wismutoxide. VI. Uber ein Wismut(III)-oxid mit hoherem sauerstoffgehalt (beta-modifikation) ; _database_code_amcsd 0015772 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Bi2 O3' _cell_length_a 10.95 _cell_length_b 10.95 _cell_length_c 5.63 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 675.051 _exptl_crystal_density_diffrn 9.170 _symmetry_space_group_name_H-M 'C -4 2 b' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' '1/2+y,x,z' '+y,1/2+x,z' '1/2-x,y,-z' '-x,1/2+y,-z' '1/2-y,-x,z' '-y,1/2-x,z' '1/2+x,-y,-z' '+x,1/2-y,-z' 'y,-x,-z' '1/2+y,1/2-x,-z' '-x,-y,z' '1/2-x,1/2-y,z' '-y,x,-z' '1/2-y,1/2+x,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Bi 0.13500 0.11500 0.25000 0.05699 O1 0.02000 0.25000 0.00000 0.05699 O2 0.02000 0.25000 0.50000 0.05699 O3 0.25000 0.25000 0.00000 0.05699 O4 0.00000 0.00000 0.50000 0.05699