data_global _chemical_name_mineral 'Dewindtite' loop_ _publ_author_name 'Piret P' 'Piret-Meunier J' 'Deliens M' _journal_name_full 'European Journal of Mineralogy' _journal_volume 2 _journal_year 1990 _journal_page_first 399 _journal_page_last 405 _publ_section_title ; Composition chimique et structure cristalline de la dewindtite Pb3[H(UO2)3O2(PO4)2]2.12H2O ; _database_code_amcsd 0006384 _chemical_formula_sum 'U3 P2 O26 Pb2' _cell_length_a 16.031 _cell_length_b 17.264 _cell_length_c 13.605 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 3765.308 _exptl_crystal_density_diffrn 5.668 _symmetry_space_group_name_H-M 'B m m b' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,y,1/2+z' 'x,1/2+y,-z' '1/2+x,1/2+y,1/2-z' '-x,1/2-y,z' '1/2-x,1/2-y,1/2+z' '-x,y,z' '1/2-x,y,1/2+z' 'x,-y,-z' '1/2+x,-y,1/2-z' 'x,1/2-y,z' '1/2+x,1/2-y,1/2+z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2-z' '-x,-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 0.20530 0.25000 0.12560 0.01300 U2 0.25100 0.13900 0.37520 0.00900 P3 0.18550 0.06190 0.12540 0.01000 O4 0.32500 0.25000 0.12100 0.03900 O5 0.09300 0.25000 0.12800 0.03800 O6 0.35400 0.13900 0.32700 0.02700 O7 0.14700 0.13500 0.42300 0.02600 O8 0.19900 0.11600 0.03900 0.02000 O9 0.20100 0.11500 0.21500 0.02000 O10 0.25200 0.00500 0.37300 0.01900 O11 0.09600 0.03200 0.12500 0.03000 O12 0.20900 0.25000 0.29800 0.04500 O13 0.28900 0.25000 0.45800 0.03000 O14 0.50000 0.25000 0.22600 0.17600 O15 0.50000 0.25000 0.43100 0.09200 O16 0.28900 0.25000 -0.19500 0.15800 Pb17 0.50000 0.05220 0.30010 0.02900 Pb18 0.50000 0.07350 -0.02280 0.03200 O19 0.50000 0.09700 0.47600 0.00800 O20 0.50000 0.10800 -0.23100 0.01700 O21 0.50000 -0.07400 0.16600 0.05400 O22 0.39900 0.08300 0.12600 0.02200 O23 -0.40700 -0.03700 -0.10600 0.03700 O24 0.50000 0.24000 0.01900 0.12500 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 U1 0.01350 0.00870 0.01560 0.00000 -0.00040 0.00000 U2 0.01490 0.00650 0.00780 0.00050 -0.00310 -0.00020 Pb17 0.02300 0.03390 0.02960 0.00000 0.00000 0.00070 Pb18 0.02350 0.04160 0.03080 0.00000 0.00000 -0.00130