data_global _chemical_name_mineral 'Metatorbernite' loop_ _publ_author_name 'Ross M' 'Evans H T' 'Appleman D E' _journal_name_full 'American Mineralogist' _journal_volume 49 _journal_year 1964 _journal_page_first 1603 _journal_page_last 1621 _publ_section_title ; Studies of the torbernite minerals (II): The crystal structure of meta-torbernite ; _database_code_amcsd 0000133 _chemical_formula_sum 'P Cu U2 O8 H4' _cell_length_a 6.969 _cell_length_b 6.969 _cell_length_c 17.306 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 840.500 _exptl_crystal_density_diffrn 11.105 _symmetry_space_group_name_H-M 'P 4/n' loop_ _space_group_symop_operation_xyz 'x,y,z' 'y,-x,-z' '1/2-y,1/2+x,z' '1/2+x,1/2+y,-z' '-x,-y,z' '-y,x,-z' '1/2+y,1/2-x,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_U_iso_or_equiv P1 0.25000 0.75000 0.00000 0.00127 P2 0.25000 0.75000 0.50000 0.00127 Cu 0.25000 0.25000 0.80990 0.01393 U1 0.25000 0.25000 0.05100 0.00963 U2 0.25000 0.25000 0.55240 0.00798 O1 0.25000 0.25000 0.15640 0.02026 O2 0.25000 0.25000 0.65630 0.01520 O3 0.25000 0.25000 0.94880 0.00887 O4 0.25000 0.25000 0.44030 0.01900 O5 0.78340 0.08020 0.44660 0.02026 O6 0.70380 0.08180 0.94860 0.00507 Wat7 0.34760 0.98140 0.31050 0.03420 Wat8 0.22250 0.97680 0.80950 0.03293