data_global _chemical_name_mineral 'Qaqarssukite-(Ce)' loop_ _publ_author_name 'Grice J D' 'Gault R A' 'Rowe R' 'Johnsen O' _journal_name_full 'The Canadian Mineralogist' _journal_volume 44 _journal_year 2006 _journal_page_first 1137 _journal_page_last 1146 _publ_section_title ; Qaqarssukite-(Ce), a new barium-cerium fluorcarbonate mineral species from Qaqarssuk, Greenland ; _database_code_amcsd 0006109 _chemical_compound_source 'Qaqarssuk, Greenland' _chemical_formula_sum 'Ce Ba C2 O6 F' _cell_length_a 7.242 _cell_length_b 7.242 _cell_length_c 18.192 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 826.282 _exptl_crystal_density_diffrn 5.022 _symmetry_space_group_name_H-M 'P -3 c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,1/2+z' 'y,-x+y,-z' '-x,-x+y,1/2-z' '-x+y,-x,z' '-x+y,y,1/2+z' '-x,-y,-z' 'y,x,1/2-z' '-y,x-y,z' 'x,x-y,1/2+z' 'x-y,x,-z' 'x-y,-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ce 0.34830 0.00000 0.25000 0.01500 Ba1 0.00000 0.00000 0.00000 0.01300 Ba2 0.66667 0.33333 0.05610 0.01520 C 0.13500 -0.21800 0.11300 0.01400 O1 0.24200 -0.00500 0.11600 0.02100 O2 0.07100 -0.31000 0.04900 0.02400 O3 0.59000 -0.09400 0.17500 0.02300 F1 0.66667 0.33333 0.70400 0.02000 F2 0.00000 0.00000 0.25000 0.06000 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Ce 0.01400 0.01400 0.01700 0.00700 -0.01200 -0.00200 Ba1 0.01000 0.01000 0.01900 0.00530 0.00000 0.00000 Ba2 0.01500 0.01500 0.01600 0.00740 0.00000 0.00000 C 0.01000 0.01000 0.03000 0.00400 0.00100 0.00400 O1 0.03000 0.01100 0.02100 0.00800 0.00800 0.00300 O2 0.02000 0.02000 0.04000 0.01900 -0.00400 -0.00200 O3 0.02000 0.02000 0.04000 0.01600 0.00900 0.01100 F1 0.01800 0.01800 0.02000 0.00900 0.00000 0.00000 F2 0.04000 0.04000 0.09000 0.02000 0.00000 0.00000