data_global _chemical_name_mineral 'Osmium' loop_ _publ_author_name 'Mochalov A G' 'Dmitrenko G G' 'Rudashevsky N S' 'Zhernovsky I V' 'Boldyreva M M' _journal_name_full 'Zapiski Vserossijskogo Mineralogicheskogo Obshchestva' _journal_volume 127 _journal_year 1998 _journal_page_first 41 _journal_page_last 51 _publ_section_title ; Hexaferrum (Fe,Ru),(Fe,Os),(Fe,Ir) - a new mineral Note: sample 6-0662 ; _database_code_amcsd 0020238 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Os' _cell_length_a 2.7341 _cell_length_b 2.7341 _cell_length_c 4.3197 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 27.965 _exptl_crystal_density_diffrn 22.588 _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 Os 0.33333 0.66667 0.25000