data_global _chemical_name_mineral 'Mimetite' loop_ _publ_author_name 'Yongshan D' 'Hughes J M' 'Moore P B' _journal_name_full 'The Canadian Mineralogist' _journal_volume 29 _journal_year 1991 _journal_page_first 369 _journal_page_last 376 _publ_section_title ; The crystal structures of mimetite and clinomimetite, Pb5(AsO4)3Cl ; _database_code_amcsd 0005264 _chemical_compound_source 'Durango, Mexico' _chemical_formula_sum 'Pb5 As3 O12 Cl' _cell_length_a 10.211 _cell_length_b 10.211 _cell_length_c 7.4185 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 669.859 _exptl_crystal_density_diffrn 7.378 _symmetry_space_group_name_H-M 'P 63/m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' 'y,-x+y,-z' '-y,x-y,z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x-y,x,-z' '-x+y,-x,z' '-y,x-y,1/2-z' 'y,-x+y,1/2+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 Pb1 0.33333 0.66667 0.50700 0.01430 Pb2 0.00470 0.25110 0.25000 0.01490 As 0.38370 0.40910 0.25000 0.00590 O1 0.49500 0.32800 0.25000 0.02180 O2 0.48600 0.60400 0.25000 0.01660 O3 0.27500 0.35900 0.06700 0.04090 Cl 0.00000 0.00000 0.00000 0.02050