data_global _chemical_name_mineral 'Cejkaite' loop_ _publ_author_name 'Plasil J' 'Fejfarova K' 'Dusek M Skoda R' 'Rohlicek J' _journal_name_full 'American Mineralogist' _journal_volume 98 _journal_year 2013 _journal_page_first 549 _journal_page_last 553 _publ_section_title ; Revision of the symmetry and the crystal structure of cejkaite, Na4(UO2)(CO3)3 ; _database_code_amcsd 0019935 _chemical_compound_source 'Jachymov, Western Bohemia, Czech Republic' _chemical_formula_sum 'Na4 U C3 O11' _cell_length_a 9.2919 _cell_length_b 16.0991 _cell_length_c 6.4436 _cell_angle_alpha 90 _cell_angle_beta 91.404 _cell_angle_gamma 90 _cell_volume 963.617 _exptl_crystal_density_diffrn 3.736 _symmetry_space_group_name_H-M 'C 1 c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-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 Na1 0.43700 -0.00260 0.07300 0.02500 Na2 0.65450 0.34730 -0.14120 0.02200 Na3 0.34560 0.21610 -0.19670 0.02900 Na4 0.30390 0.43630 0.79590 0.02600 U 0.43392 0.33354 0.32192 0.01095 C1 0.63400 0.13000 -0.16100 0.01900 C2 0.02300 0.33700 -0.16000 0.01700 C3 0.64300 0.53500 -0.20500 0.02300 O1 0.23600 0.57300 0.87200 0.02600 O2 0.89600 0.31100 -0.13700 0.03000 O3 0.50800 0.10810 -0.15300 0.02400 O4 0.06400 0.40980 -0.16000 0.02600 O5 0.17800 0.11630 -0.24000 0.01800 O6 0.68200 0.20490 -0.16500 0.01900 O7 0.50700 0.52170 0.82300 0.01300 O8 0.73300 0.48060 -0.21100 0.02000 O9 0.11600 0.27480 -0.19300 0.02000 O10 0.45500 0.33400 0.60700 0.01000 O11 0.43800 0.33200 0.03000 0.01000 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 Na1 0.02600 0.02400 0.02500 -0.00300 0.00500 0.00100 Na2 0.02000 0.01200 0.03400 -0.00300 0.00000 0.00200 Na3 0.01200 0.01900 0.05600 0.00500 0.00200 0.01000 Na4 0.00600 0.01900 0.05200 -0.00200 0.00300 -0.00300 U 0.00900 0.00800 0.01590 -0.00140 0.00200 -0.00010