data_global _chemical_name_mineral 'Thometzekite' loop_ _publ_author_name 'Krause W' 'Belendorff K' 'Bernhardt H J' 'McCammon C A' 'Effenberger H' 'Mikenda W' _journal_name_full 'European Journal of Mineralogy' _journal_volume 10 _journal_year 1998 _journal_page_first 179 _journal_page_last 206 _publ_section_title ; Crystal chemistry of the tsumcorite-group minerals. New data on ferrilotharmeyerite, tsumcorite, thometzekite, mounanaite, helmutwinklerite, and a redefinition of gartrellite ; _database_code_amcsd 0006709 _chemical_compound_source 'Tsumeb mine, Namibia' _chemical_formula_sum 'Pb Cu2 (As1.234 S.766) (O10 H2)' _cell_length_a 9.077 _cell_length_b 6.300 _cell_length_c 7.661 _cell_angle_alpha 90 _cell_angle_beta 116.99 _cell_angle_gamma 90 _cell_volume 390.380 _exptl_crystal_density_diffrn 5.218 _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_occupancy _atom_site_U_iso_or_equiv PbMe1 0.00000 0.00000 0.00000 1.00000 0.03014 CuMe2 0.25000 0.25000 0.50000 1.00000 0.01824 AsX 0.91670 0.50000 0.20970 0.61700 0.01836 SX 0.91670 0.50000 0.20970 0.38300 0.01836 O-H1 0.34260 0.50000 0.42040 1.00000 0.02419 O2 0.30830 0.00000 0.32670 1.00000 0.02926 O3 0.03080 0.28870 0.26230 1.00000 0.02318 O4 0.20840 0.50000 0.01800 1.00000 0.03572