data_global _chemical_name_mineral 'Krennerite' loop_ _publ_author_name 'Dye M D' 'Smyth J R' _journal_name_full 'The Canadian Mineralogist' _journal_volume 50 _journal_year 2012 _journal_page_first 119 _journal_page_last 127 _publ_section_title ; The crystal structure and genesis of krennerite, Au3AgTe8 ; _database_code_amcsd 0019042 _chemical_compound_source 'Cripple Creek, Colorado, USA' _chemical_formula_sum 'Au1.49 Ag.507 Te4' _cell_length_a 16.590 _cell_length_b 8.867 _cell_length_c 4.4886 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 660.289 _exptl_crystal_density_diffrn 8.637 _symmetry_space_group_name_H-M 'P m a 2' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,-y,z' '1/2-x,y,z' '-x,-y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Au1 0.00000 0.00000 0.00000 0.57400 Ag1 0.00000 0.00000 0.00000 0.42600 Au2 0.75000 0.68359 0.99888 0.41300 Ag2 0.75000 0.68359 0.99888 0.58700 Au3 0.87326 0.33624 0.51017 0.99700 Te1 0.75000 0.98757 0.05372 1.00000 Te2 0.75000 0.38423 0.13089 1.00000 Te3 0.99237 0.30122 0.91171 1.00000 Te4 0.87443 0.63750 0.53488 1.00000 Te5 0.87800 0.03659 0.46685 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 Au1 0.02080 0.01240 0.02280 0.00000 0.00000 0.00150 Ag1 0.02080 0.01240 0.02280 0.00000 0.00000 0.00150 Au2 0.02240 0.01210 0.03120 -0.00020 0.00000 0.00000 Ag2 0.02240 0.01210 0.03120 -0.00020 0.00000 0.00000 Au3 0.01190 0.01110 0.01710 -0.00100 -0.00250 0.00030 Te1 0.01290 0.01330 0.01660 -0.00260 0.00000 0.00000 Te2 0.01070 0.01200 0.01540 0.00050 0.00000 0.00000 Te3 0.01200 0.01240 0.01500 0.00070 -0.00070 -0.00050 Te4 0.01310 0.01180 0.01750 -0.00050 0.00060 -0.00050 Te5 0.01270 0.01150 0.01730 -0.00020 0.00100 -0.00020