data_global _chemical_name_mineral 'Pyrargyrite' loop_ _publ_author_name 'Engel P' 'Nowacki W' _journal_name_full 'Neues Jahrbuch fur Mineralogie, Monatshefte' _journal_volume 1966 _journal_year 1966 _journal_page_first 181 _journal_page_last 184 _publ_section_title ; Die verfeinerung der kristallstruktur von proustit, Ag3AsS3 und pyrargyrit, Ag3SbS3 ; _database_code_amcsd 0014730 _chemical_formula_sum 'Ag3 Sb S3' _cell_length_a 11.04 _cell_length_b 11.04 _cell_length_c 8.72 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 920.418 _exptl_crystal_density_diffrn 5.862 _symmetry_space_group_name_H-M 'R 3 c' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'x,x-y,1/2+z' '2/3+x,1/3+x-y,5/6+z' '1/3+x,2/3+x-y,1/6+z' '-y,-x,1/2+z' '2/3-y,1/3-x,5/6+z' '1/3-y,2/3-x,1/6+z' '-x+y,y,1/2+z' '2/3-x+y,1/3+y,5/6+z' '1/3-x+y,2/3+y,1/6+z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ag 0.24680 0.30340 0.21580 Sb 0.00000 0.00000 0.00000 S 0.22140 0.10140 0.35600 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 Ag 0.07734 0.04122 0.05932 0.03010 0.00359 0.02830 Sb 0.01204 0.01204 0.01926 0.00602 0.00000 0.00000 S 0.01158 0.01482 0.01618 0.00509 0.00084 0.00021