data_global _chemical_name_mineral 'Valentinite' loop_ _publ_author_name 'Buerger M J' _journal_name_full 'American Mineralogist' _journal_volume 21 _journal_year 1936 _journal_page_first 206 _journal_page_last 207 _publ_section_title ; The crystal structure of valentinite ; _database_code_amcsd 0000015 _chemical_formula_sum 'Sb2 O3' _cell_length_a 4.92 _cell_length_b 12.46 _cell_length_c 5.42 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 332.263 _exptl_crystal_density_diffrn 5.827 _symmetry_space_group_name_H-M 'P c c n' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '1/2-x,y,1/2+z' '1/2+x,-y,1/2-z' '1/2+x,1/2+y,-z' '1/2-x,1/2-y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Sb 0.12150 0.20700 0.17500 O1 0.25000 0.25000 -0.07500 O2 -0.11000 0.15600 0.17500