data_global _chemical_name_mineral 'Heyrovskyite' loop_ _publ_author_name 'Takeuchi Y' 'Takagi J' _journal_name_full 'Proceedings of the Japan Academy' _journal_volume 50 _journal_year 1974 _journal_page_first 76 _journal_page_last 79 _publ_section_title ; The structure of heyrovskyite (6PbS*Bi2S3) ; _database_code_amcsd 0015328 _chemical_compound_source 'Yakuki mine, Fukushima Prefecture, Japan' _chemical_formula_sum 'Pb6 Bi2 S9' _cell_length_a 13.712 _cell_length_b 31.210 _cell_length_c 4.131 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1767.868 _exptl_crystal_density_diffrn 7.326 _symmetry_space_group_name_H-M 'B b m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,y,1/2+z' '-x,1/2+y,z' '1/2-x,1/2+y,1/2+z' 'x,1/2-y,-z' '1/2+x,1/2-y,1/2-z' 'x,y,-z' '1/2+x,y,1/2-z' '-x,-y,z' '1/2-x,-y,1/2+z' 'x,1/2-y,z' '1/2+x,1/2-y,1/2+z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-x,-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy PbM1 0.41740 0.25000 0.00000 1.00000 PbM2 0.00000 0.00000 0.50000 1.00000 PbM3 0.22900 0.05830 0.00000 1.00000 PbM4 0.18150 0.17500 0.50000 0.50000 BiM4 0.18150 0.17500 0.50000 0.50000 PbM5 0.45640 0.11990 0.50000 0.50000 BiM5 0.45640 0.11990 0.50000 0.50000 S1 0.04630 0.19550 0.00000 1.00000 S2 0.08470 0.08630 0.50000 1.00000 S3 0.27720 0.25000 0.50000 1.00000 S4 0.32990 0.14700 0.00000 1.00000 S5 0.35980 0.02690 0.50000 1.00000 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 PbM1 0.04134 0.06366 0.05345 0.00000 0.00000 0.00000 PbM2 0.02810 0.02319 0.02521 0.00022 0.00000 0.00000 PbM3 0.02705 0.02714 0.02710 0.00087 0.00000 0.00000 PbM4 0.03962 0.02911 0.03344 -0.00065 0.00000 0.00000 BiM4 0.03962 0.02911 0.03344 -0.00065 0.00000 0.00000 PbM5 0.02743 0.02319 0.02571 -0.00043 0.00000 0.00000 BiM5 0.02743 0.02319 0.02571 -0.00043 0.00000 0.00000 S1 0.03877 0.02763 0.02888 0.00152 0.00000 0.00000 S2 0.03229 0.03010 0.02799 0.00173 0.00000 0.00000 S3 0.04258 0.01974 0.02672 0.00000 0.00000 0.00000 S4 0.03772 0.03948 0.03129 0.01019 0.00000 0.00000 S5 0.03286 0.02566 0.02217 0.00238 0.00000 0.00000