data_global _chemical_name_mineral 'Mimetite' loop_ _publ_author_name 'Baikie T' 'Ferraris C' 'Klooster W T' 'Madhavi S' 'Pramana S S' 'Pring A' 'Schmidt G' 'White T J' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 64 _journal_year 2008 _journal_page_first 34 _journal_page_last 41 _publ_section_title ; Crystal chemistry of mimetite, Pb10(AsO4)6Cl1.48O0.26, and finnemanite, Pb10(AsO3)6Cl2 Note: T = 473 K ; _database_code_amcsd 0020326 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Pb5 As3 O12.13 Cl.74' _cell_length_a 10.2415 _cell_length_b 10.2415 _cell_length_c 7.4594 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 677.582 _exptl_crystal_density_diffrn 7.259 _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_occupancy Pb1 0.33333 0.66667 0.00460 1.00000 Pb2 0.25060 0.00450 0.25000 1.00000 As1 0.40570 0.38070 0.25000 1.00000 O1 0.32800 0.49210 0.25000 1.00000 O2 0.59660 0.48260 0.22270 0.50000 O3b 0.38210 0.28950 0.05390 1.00000 O4 0.00000 0.00000 0.25000 0.13000 Cl1 0.00000 0.00000 0.00000 0.74000