data_global _chemical_name_mineral 'Wyartite' loop_ _publ_author_name 'Burns P C' 'Finch R J' _journal_name_full 'American Mineralogist' _journal_volume 84 _journal_year 1999 _journal_page_first 1456 _journal_page_last 1460 _publ_section_title ; Wyartite: Crystallographic evidence for the first pentavalent-uranium mineral ; _database_code_amcsd 0002316 _chemical_formula_sum 'U3 Ca C O19 H15' _cell_length_a 11.2706 _cell_length_b 7.1055 _cell_length_c 20.807 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1666.292 _exptl_crystal_density_diffrn 4.326 _symmetry_space_group_name_H-M 'P 21 21 21' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,1/2+y,1/2-z' '1/2+x,1/2-y,-z' '1/2-x,-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 U1 0.55950 0.28920 0.23948 0.01130 U2 -0.05930 0.28970 0.23585 0.01090 U3 0.24900 0.29190 0.28343 0.01170 Ca -0.07340 0.43220 0.04690 0.02320 C 0.24100 0.24000 0.42300 0.03200 O1 0.51100 0.31000 0.15400 0.01970 O2 -0.01100 0.31400 0.15600 0.02060 O3 0.11000 0.10900 0.25150 0.00620 O4 0.38800 0.10500 0.26700 0.01820 O5 0.61000 0.28200 0.32050 0.00500 O6 -0.11200 0.24000 0.31600 0.02810 O7 0.10000 0.46300 0.27800 0.01520 O8 0.39000 0.47400 0.27200 0.01580 O9 0.18700 0.12600 0.38000 0.03730 O10 0.22400 0.21100 0.48170 0.00340 O11 0.28600 0.38400 0.39660 0.00340 O-H12 0.75200 0.28500 0.19800 0.01560 Wat13 -0.25200 0.23500 0.05220 0.03670 Wat14 0.25400 0.36300 0.16700 0.03080 Wat15 0.45900 0.02800 0.06680 0.03580 Wat16 0.09300 0.62900 0.05300 0.01610 Wat17 0.04500 0.15900 0.01600 0.00840 Wat18 0.20900 0.03600 0.10300 0.00910 Wat19 -0.07900 -0.08200 -0.05800 0.02540