data_global _chemical_name_mineral 'Zippeite' loop_ _publ_author_name 'Plasil J' 'Mills S J' 'Fejfarova K' 'Dusek M' 'Novak M' 'Skoda R' 'Cejka J' 'Sejkora J' _journal_name_full 'The Canadian Mineralogist' _journal_volume 49 _journal_year 2011 _journal_page_first 1089 _journal_page_last 1103 _publ_section_title ; The crystal structure of natural zippeite, K1.85H+0.15[(UO2)4O2(SO4)2(OH)2](H2O)4, from Jachymov, Czech Republic ; _database_code_amcsd 0018658 _chemical_compound_source 'Jachymov, Czech Republic' _chemical_formula_sum 'U2 S K.92 H5.08 O12' _cell_length_a 8.7802 _cell_length_b 13.9903 _cell_length_c 8.8630 _cell_angle_alpha 90 _cell_angle_beta 104.524 _cell_angle_gamma 90 _cell_volume 1053.918 _exptl_crystal_density_diffrn 4.671 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,1/2-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 0.32998 0.23438 0.32576 1.00000 0.02790 S 0.50000 0.25790 0.00000 1.00000 0.02300 K1 0.11800 0.50000 0.35300 0.24000 0.06300 H1 0.11800 0.50000 0.35300 0.04000 0.06300 K2 -0.06700 0.50000 -0.23300 0.68000 0.06300 H2 -0.06700 0.50000 -0.23300 0.04000 0.06300 O1 0.12330 0.18000 0.09600 1.00000 0.03100 O2 0.43500 0.19610 0.10300 1.00000 0.03200 O3 0.30300 0.35560 0.27500 1.00000 0.04100 O4 0.35300 0.11070 0.36300 1.00000 0.03900 O5 0.10200 0.23690 0.41000 0.50000 0.05500 O-H5 0.10200 0.23690 0.41000 0.50000 0.05500 WatO6a 0.06100 0.00000 0.30000 0.47000 0.04700 WatO6b 0.07400 0.00000 0.39900 0.53000 0.04700 WatO7a 0.22500 0.50000 -0.01100 0.75000 0.05500 WatO7b 0.33400 0.50000 0.01500 0.25000 0.05500