data_global _chemical_name_mineral 'Quenselite' loop_ _publ_author_name 'Rouse R C' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 134 _journal_year 1971 _journal_page_first 321 _journal_page_last 332 _publ_section_title ; The crystal structure of quenselite ; _database_code_amcsd 0010724 _chemical_compound_source 'Langban, Sweden' _chemical_formula_sum 'Pb Mn O3 H' _cell_length_a 5.61 _cell_length_b 5.70 _cell_length_c 9.15 _cell_angle_alpha 90 _cell_angle_beta 93.0 _cell_angle_gamma 90 _cell_volume 292.189 _exptl_crystal_density_diffrn 7.073 _symmetry_space_group_name_H-M 'P 1 2/a 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2-x,y,-z' '1/2+x,-y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Pb -0.00920 0.24640 0.34100 0.01140 Mn1 0.75000 0.87250 0.00000 0.00507 Mn2 0.75000 0.38560 0.00000 0.00507 O1 0.11210 0.37400 0.87880 0.00355 O2 0.90390 0.13220 0.11270 0.00874 O-H 0.90440 0.15310 0.62890 0.01216