data_global _chemical_name_mineral 'Paralaurionite' loop_ _publ_author_name 'Merlino S' 'Pasero M' 'Perchialli N' _journal_name_full 'Mineralogical Magazine' _journal_volume 57 _journal_year 1993 _journal_page_first 323 _journal_page_last 328 _publ_section_title ; Crystal structure of paralaurionite and its OD relationships with laurionite ; _database_code_amcsd 0014500 _chemical_formula_sum 'Pb Cl O H' _cell_length_a 10.865 _cell_length_b 4.006 _cell_length_c 7.233 _cell_angle_alpha 90 _cell_angle_beta 117.24 _cell_angle_gamma 90 _cell_volume 279.904 _exptl_crystal_density_diffrn 6.162 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,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_U_iso_or_equiv Pb 0.17190 0.00000 0.24080 0.01026 Cl 0.43320 0.00000 0.19100 0.02153 O 0.19800 0.00000 0.59100 0.01520 H 0.10800 0.00000 0.59000 ?