data_global _chemical_name_mineral 'Queitite' loop_ _publ_author_name 'Hess H' 'Keller P' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 151 _journal_year 1980 _journal_page_first 287 _journal_page_last 299 _publ_section_title ; Die kristallstruktur von queitit, Pb4Zn2[SO4|SiO4|Si2O7] ; _database_code_amcsd 0010825 _chemical_compound_source 'Tsumeb mine, Namibia' _chemical_formula_sum 'Pb4 Zn2 S Si3 O15' _cell_length_a 11.362 _cell_length_b 5.266 _cell_length_c 12.655 _cell_angle_alpha 90 _cell_angle_beta 108.16 _cell_angle_gamma 90 _cell_volume 719.463 _exptl_crystal_density_diffrn 6.074 _symmetry_space_group_name_H-M 'P 1 21 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-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 Pb1 0.15080 0.00000 0.21670 0.01317 Pb2 0.18360 0.01530 0.87120 0.01203 Pb3 0.54340 0.04420 0.88670 0.01178 Pb4 0.73240 0.38850 0.43770 0.01608 Zn1 0.91950 0.00880 0.35400 0.00659 Zn2 0.63930 -0.02110 0.61250 0.00773 S 0.85260 -0.00670 0.96750 0.01102 Si1 0.92250 0.01960 0.62450 0.00519 Si2 0.48550 -0.01830 0.34430 0.00608 Si3 0.63840 0.05800 0.18290 0.00507 O1 0.89440 -0.01420 0.09000 0.01013 O2 0.60230 0.07210 0.45270 0.01153 O3 0.34490 0.25910 0.84330 0.01507 O4 0.23590 0.27640 0.07210 0.00456 O5 0.78110 0.23150 0.93170 0.01444 O6 0.95620 -0.03190 0.92140 0.01064 O7 0.52770 0.17910 0.66800 0.00861 O8 0.80740 0.13320 0.66290 0.00861 O9 0.06320 0.21650 0.35260 0.01115 O10 0.35910 0.12280 0.34770 0.01760 O11 0.04990 0.17470 0.68870 0.00697 O12 0.59540 0.23230 0.07080 0.00874 O13 0.76060 0.19060 0.27320 0.00988 O14 0.88520 0.09450 0.49070 0.01127 O15 0.52240 0.09070 0.23570 0.01697