data_global _chemical_name_mineral 'Curite' loop_ _publ_author_name 'Li Y' 'Burns P C' _journal_name_full 'The Canadian Mineralogist' _journal_volume 38 _journal_year 2000 _journal_page_first 727 _journal_page_last 735 _publ_section_title ; Investigations of crystal-chemical variability in lead uranyl oxide hydrates. I. Curite Note: sample JVS4331(b) ; _database_code_amcsd 0005659 _chemical_compound_source 'Swaambo, Democratic Republic of Congo' _chemical_formula_sum 'U4 Pb.78 O16 H5' _cell_length_a 12.562 _cell_length_b 13.018 _cell_length_c 8.392 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1372.362 _exptl_crystal_density_diffrn 6.654 _symmetry_space_group_name_H-M 'P n a m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,y,1/2-z' '-x,-y,1/2+z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv U(1) 0.20930 0.07610 0.25000 1.00000 0.02700 U(2) 0.19630 0.06520 0.75000 1.00000 0.02500 U(3) 0.30190 0.28510 -0.01270 1.00000 0.02400 Pb(1) 0.06550 0.33160 0.25000 0.47100 0.04800 Pb(2) 0.01760 0.37720 0.75000 0.30900 0.06200 O(1) 0.22820 0.12380 0.00500 1.00000 0.03300 O(2) 0.16910 0.34260 -0.03400 1.00000 0.03000 Wat(3) 0.00000 0.50000 0.00000 1.00000 0.06100 O(4) 0.06640 0.73110 -0.01700 1.00000 0.03600 O(5) 0.06540 0.11760 0.25000 1.00000 0.02800 O(6) 0.25600 0.25300 0.25000 1.00000 0.03100 O(7) 0.34900 0.03600 0.25000 1.00000 0.03200 O(8) 0.17700 0.49300 0.25000 1.00000 0.03600 O(9) 0.20200 0.70900 0.25000 1.00000 0.03800 O-H(10) 0.15400 0.90600 0.25000 1.00000 0.03700 O(11) 0.43100 0.62830 0.25000 1.00000 0.03100 O-H(12) 0.37310 0.43690 0.08300 1.00000 0.03500