data_global _chemical_name_mineral 'Asisite' loop_ _publ_author_name 'Rouse R C' 'Peacor D R' 'Dunn P J' 'Criddle A J' 'Stanley C J' 'Innes J' _journal_name_full 'American Mineralogist' _journal_volume 73 _journal_year 1988 _journal_page_first 643 _journal_page_last 650 _publ_section_title ; Asisite, a silicon-bearing lead oxychloride from the Kombat mine, South West Africa (Namibia) ; _database_code_amcsd 0001166 _chemical_formula_sum 'Pb3.5 Cl O4' _cell_length_a 3.897 _cell_length_b 3.897 _cell_length_c 22.81 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 346.407 _exptl_crystal_density_diffrn 7.906 _symmetry_space_group_name_H-M 'I 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-y,-x,z' '1/2-y,1/2-x,1/2+z' 'y,x,-z' '1/2+y,1/2+x,1/2-z' 'y,-x,-z' '1/2+y,1/2-x,1/2-z' '-y,x,z' '1/2-y,1/2+x,1/2+z' 'x,-y,z' '1/2+x,1/2-y,1/2+z' '-x,y,-z' '1/2-x,1/2+y,1/2-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' 'y,x,z' '1/2+y,1/2+x,1/2+z' '-y,-x,-z' '1/2-y,1/2-x,1/2-z' '-y,x,-z' '1/2-y,1/2+x,1/2-z' 'y,-x,z' '1/2+y,1/2-x,1/2+z' '-x,y,z' '1/2-x,1/2+y,1/2+z' 'x,-y,-z' '1/2+x,1/2-y,1/2-z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv Pb1 0.00000 0.00000 0.08380 1.00000 ? Pb2 0.00000 0.00000 0.30470 0.75000 ? Cl 0.00000 0.00000 0.50000 1.00000 ? O 0.00000 0.50000 0.14400 1.00000 0.07400 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Pb1 0.02000 0.02000 0.00700 0.00000 0.00000 0.00000 Pb2 0.02000 0.02000 0.01000 0.00000 0.00000 0.00000 Cl 0.06000 0.06000 0.03000 0.00000 0.00000 0.00000