data_global _chemical_name_mineral 'Proustite' loop_ _publ_author_name 'Harker D' _journal_name_full 'Journal of Chemical Physics' _journal_volume 4 _journal_year 1936 _journal_page_first 381 _journal_page_last 390 _publ_section_title ; The application of the three-dimensional patterson method and the crystal structures of proustite, Ag3 As S3, and pyrargyrite, Ag3 SbS3 _cod_database_code 1011161 ; _database_code_amcsd 0018040 _chemical_formula_sum 'As Ag3 S3' _cell_length_a 10.74 _cell_length_b 10.74 _cell_length_c 8.64 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 863.084 _exptl_crystal_density_diffrn 5.711 _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 As1 0.00000 0.00000 0.00000 Ag1 0.24600 0.29800 0.23500 S1 0.22000 0.09500 0.38500