data_global _chemical_name_mineral 'Cejkaite' loop_ _publ_author_name 'Ondrus P' 'Skala R' 'Veselovsky F' 'Sejkora J' 'Vitti C' _journal_name_full 'American Mineralogist' _journal_volume 88 _journal_year 2003 _journal_page_first 686 _journal_page_last 693 _publ_section_title ; Cejkaite, the triclinic polymorph of Na4(UO2)(CO3)3 - a new mineral from Jachymov, Czech Republic ; _database_code_amcsd 0003078 _chemical_formula_sum 'Na4 U C3 O11' _cell_length_a 9.291 _cell_length_b 9.292 _cell_length_c 12.895 _cell_angle_alpha 90.73 _cell_angle_beta 90.82 _cell_angle_gamma 120.00 _cell_volume 963.750 _exptl_crystal_density_diffrn 3.736 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Na1 0.00000 0.00000 0.00000 Na1a 0.00000 0.00000 0.50000 Na2 0.00000 0.00000 0.25300 Na3 0.43180 0.30560 0.12220 Na3a 0.11480 0.69040 0.36730 Na3b 0.31760 0.43850 0.37770 Na3c 0.42840 0.12490 0.61660 Na3d 0.12510 0.43450 0.87140 Na3e 0.31000 0.88240 0.87840 U1 0.32680 0.66090 0.12990 U1a 0.32400 0.65830 0.62790 C1 0.07860 0.32290 0.14200 C1a 0.25490 0.92950 0.14900 C1b 0.33400 0.07510 0.39300 C1c 0.07300 0.75480 0.63700 C1d 0.25520 0.31690 0.67430 C1e 0.32190 0.25680 0.85500 O1 0.33480 0.66890 0.27230 O1a 0.33320 0.67180 0.77010 O2 0.33400 0.67060 0.98920 O2a 0.32390 0.67130 0.48710 O11 0.03900 0.43910 0.13400 O11a 0.40070 0.95060 0.12600 O11b 0.46320 0.05420 0.39400 O11c 0.03940 0.60030 0.63500 O11d 0.39700 0.44300 0.64700 O11e 0.45200 0.40580 0.86500 O12 0.14610 0.77060 0.15300 O12a 0.23570 0.37680 0.16300 O12b 0.38650 0.23490 0.39500 O12c 0.15260 0.37470 0.67200 O12d 0.23360 0.85540 0.65000 O12e 0.38030 0.15450 0.85900 O13 0.21390 0.03380 0.12600 O13a 0.04520 0.22160 0.38210 O13b 0.18440 0.96710 0.38130 O13c 0.21580 0.18650 0.62430 O13d 0.03560 0.82110 0.87530 O13e 0.17760 0.21550 0.88040