data_global _chemical_name_mineral 'Laurionite' loop_ _publ_author_name 'Wyckoff R W G' _journal_name_full 'Crystal Structures' _journal_volume 1 _journal_year 1963 _journal_page_first 298 _journal_page_last 306 _publ_section_title ; Second edition. Interscience Publishers, New York, New York ; _database_code_amcsd 0011877 _chemical_formula_sum 'Pb (O Cl) H' _cell_length_a 9.7 _cell_length_b 7.1 _cell_length_c 4.05 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 278.923 _exptl_crystal_density_diffrn 6.183 _symmetry_space_group_name_H-M 'P b n m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,y,1/2-z' '-x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Pb 0.08800 0.20400 0.25000 O-H 0.12500 0.83100 0.25000 Cl -0.18500 0.46900 0.25000