data_global _chemical_name_mineral 'Sanbornite' loop_ _publ_author_name 'Goreaud M' 'Choisnet J' 'Raveau B' 'Deschanvres A' _journal_name_full 'Revue de Chimie Minerale' _journal_volume 11 _journal_year 1974 _journal_page_first 207 _journal_page_last 216 _publ_section_title ; Sur les silicogermanates Ba (Si2-x Gex) O5 isotypes de la sanbornite _cod_database_code 1001772 ; _database_code_amcsd 0015374 _chemical_formula_sum 'Ba Si2 O5' _cell_length_a 4.634 _cell_length_b 7.69 _cell_length_c 13.512 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 481.506 _exptl_crystal_density_diffrn 3.773 _symmetry_space_group_name_H-M 'P c m n' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2+x,1/2+y,1/2-z' '1/2-x,1/2-y,1/2+z' '1/2-x,y,1/2+z' '1/2+x,-y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ba1 0.27800 0.25000 0.04300 Si1 0.37100 0.05400 0.31900 O1 0.41200 0.25000 0.34300 O2 0.14800 0.04300 0.23200 O3 0.23800 0.94700 0.40900