data_global _chemical_name_mineral 'Cordylite-(Ce)' loop_ _publ_author_name 'Giester G' 'Ni Y' 'Jarosch D' 'Hughes J M' 'Ronsbo J G' 'Yang Z' 'Zemann J' _journal_name_full 'American Mineralogist' _journal_volume 83 _journal_year 1998 _journal_page_first 178 _journal_page_last 184 _publ_section_title ; Cordylite-(Ce): A crystal chemical investigation of material from four localities, including type material Sample: from Bayan Obo, refinement based on F2 ; _database_code_amcsd 0001969 _chemical_formula_sum 'Ba Ce2 Na F C4 O12' _cell_length_a 5.109 _cell_length_b 5.109 _cell_length_c 23.289 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 526.445 _exptl_crystal_density_diffrn 4.413 _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 _atom_site_U_iso_or_equiv Ba 0.00000 0.00000 0.00000 0.03100 Ce 0.33333 0.66667 0.35451 0.02100 Na 0.33333 0.66667 0.75000 0.02900 F 0.33333 0.66667 0.25000 0.06600 C1 0.00000 0.00000 0.67780 0.02500 C2 0.66667 0.33333 0.43420 0.03000 O1 0.14410 0.28820 0.67620 0.03200 O2 0.52120 0.04240 0.43500 0.04300