data_global _chemical_name_mineral 'Widenmannite' loop_ _publ_author_name 'Plasil J' 'Palatinus L' 'Rohlicek J' 'Houdkovaq L' 'Klementova M' 'Golias V' 'Skacha P' _journal_name_full 'American Mineralogist' _journal_volume 99 _journal_year 2014 _journal_page_first 276 _journal_page_last 282 _publ_section_title ; Crystal structure of lead uranyl carbonate mineral widenmannite: Precession electron-diffraction and synchrotron powder-diffraction study Note: data collected at synchrotron ; _database_code_amcsd 0020039 _chemical_compound_source 'Brezove Hory deposit, Pribram ore district, Czech Republic' _chemical_formula_sum 'Pb.926 U.5 O4.926 C H' _cell_length_a 4.9770 _cell_length_b 9.3869 _cell_length_c 8.9597 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 418.585 _exptl_crystal_density_diffrn 6.390 _symmetry_space_group_name_H-M 'P m m n' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,z' '1/2-x,1/2+y,-z' '-x,y,z' '1/2+x,1/2-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 Pb1 0.50000 0.74140 0.17230 0.92600 0.05600 U1 0.50000 0.50000 0.57470 0.92600 0.01200 O1 1.00000 0.50000 0.56700 1.00000 0.00200 O2 0.77500 0.50000 0.35000 1.00000 0.00200 O3 0.50000 0.69200 0.57600 0.92600 0.00200 C1 1.00000 0.50000 0.42200 1.00000 0.00200 O4 0.27200 0.50000 0.81800 1.00000 0.00200 C2 0.50000 0.50000 0.89100 1.00000 0.00200 O5 0.50000 0.50000 0.03600 1.00000 0.00200 O6 0.50000 0.81600 -0.07800 1.00000 0.00200 U2 0.50000 0.00000 0.89300 0.07400 0.07000 H1 0.50000 0.89479 -0.11729 1.00000 0.00230 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 Pb1 0.08700 0.03800 0.04400 0.00000 0.00000 -0.00800