data_global _chemical_name_mineral 'Geschieberite' loop_ _publ_author_name 'Plasil J' 'Hlousek J' 'Kasatkin A V' 'Skoda R' 'Novak M' 'Cejka J' _journal_name_full 'Mineralogical Magazine' _journal_volume 79 _journal_year 2015 _journal_page_first 205 _journal_page_last 216 _publ_section_title ; Geschieberite, K2(UO2)(SO4)2(H2O)2, a new uranyl sulfate mineral from Jachymov ; _database_code_amcsd 0020741 _chemical_compound_source 'Svornost mine, Jachymov, Czech Republic' _chemical_formula_sum 'K2 U S2 (O12 H4)' _cell_length_a 13.7778 _cell_length_b 7.2709 _cell_length_c 11.5488 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1156.924 _exptl_crystal_density_diffrn 3.309 _symmetry_space_group_name_H-M 'P n a 21' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,1/2+z' '-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 K1 0.06980 0.23990 0.03510 0.03240 K2 -0.07100 -0.23710 -0.03830 0.03110 U 0.25508 0.91435 0.25041 0.01299 S1 0.17620 0.74350 -0.03130 0.01440 S2 -0.17660 -0.74420 0.02830 0.01570 Wat1 0.23520 0.06870 0.75430 0.02400 O2 0.24610 0.79700 0.06240 0.01900 O3 -0.24830 -0.78500 -0.06520 0.02000 O4 0.25840 0.17030 0.12440 0.01600 O5 -0.26570 -0.17200 -0.12820 0.02000 Wat6 0.06810 0.39950 0.24740 0.03810 O7 0.10590 0.60940 0.00200 0.02700 O8 -0.10930 -0.60580 -0.01670 0.02100 O9 0.13300 0.91460 -0.07120 0.02000 O10 -0.12280 -0.90860 0.06550 0.02300 O11 0.38320 0.89660 0.25550 0.01980 O12 0.12640 0.93260 0.25560 0.02190 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 K1 0.02300 0.02000 0.05400 -0.00060 0.00500 -0.00490 K2 0.02400 0.02200 0.04700 0.00100 -0.00100 -0.00410 U 0.01811 0.00904 0.01181 -0.00029 -0.00120 -0.00340 S1 0.01800 0.01200 0.01300 0.00140 0.00000 -0.00360 S2 0.02300 0.00800 0.01600 -0.00160 0.00000 0.00110