data_global _amcsd_formula_title 'Ba Ge3 O9 Sn' loop_ _publ_author_name 'Choisnet J' 'Deschanvres A' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 4 _journal_year 1972 _journal_page_first 209 _journal_page_last 218 _publ_section_title ; Sur de nouveaux germanates et silicates de type benitoite _cod_database_code 1001078 ; _database_code_amcsd 0013297 _chemical_formula_sum 'Ba Sn Ge3 O9' _cell_length_a 6.894 _cell_length_b 6.894 _cell_length_c 10.233 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 421.188 _exptl_crystal_density_diffrn 4.872 _symmetry_space_group_name_H-M 'P -6 c 2' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,x-y,-z' '-x+y,-x,1/2-z' '-y,-x,1/2+z' '-y,x-y,z' '-x+y,y,-z' 'x,y,1/2-z' 'x,x-y,1/2+z' '-x+y,-x,z' '-y,-x,-z' '-y,x-y,1/2-z' '-x+y,y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ba1 0.66667 0.33333 0.00000 Sn1 0.33333 0.66667 0.00000 Ge1 0.07200 0.29500 0.25000 O1 0.25800 0.19700 0.25000 O2 0.09000 0.43900 0.10900