data_global _chemical_name_mineral 'Bastnasite-(Ce)' loop_ _publ_author_name 'Donnay G' 'Donnay J D H' _journal_name_full 'American Mineralogist' _journal_volume 38 _journal_year 1953 _journal_page_first 932 _journal_page_last 963 _publ_section_title ; The crystallography of bastnaesite, parasite, roentgenite, and synchisite ; _database_code_amcsd 0000059 _chemical_formula_sum 'Ce C O3 F' _cell_length_a 7.16 _cell_length_b 7.16 _cell_length_c 9.79 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 434.650 _exptl_crystal_density_diffrn 5.023 _symmetry_space_group_name_H-M 'P -6 2 c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' '-x+y,-x,1/2-z' 'y,x,-z' '-y,x-y,z' 'x-y,-y,1/2+z' 'x,y,1/2-z' '-x,-x+y,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,x-y,1/2-z' 'x-y,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ce 0.33333 0.00000 0.00000 C 0.24500 0.33333 0.25000 O1 0.06700 0.33333 0.25000 O2 0.33333 0.33333 0.13800 F1 0.00000 0.00000 0.00000 F2 0.33333 0.66667 0.00000