data_global _chemical_name_mineral 'Allargentum' loop_ _publ_author_name 'Petruk W' 'Cabri L J' 'Harris D C' 'Stewart J M' 'Clark L A' _journal_name_full 'The Canadian Mineralogist' _journal_volume 10 _journal_year 1970 _journal_page_first 163 _journal_page_last 172 _publ_section_title ; Allargentum, redefined ; _database_code_amcsd 0005089 _chemical_compound_source 'Hi-Ho mine, Cobalt, Ontario, Canada' _chemical_formula_sum '(Ag.865 Sb.134 Hg.001)' _cell_length_a 2.952 _cell_length_b 2.952 _cell_length_c 4.773 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 36.021 _exptl_crystal_density_diffrn 10.125 _symmetry_space_group_name_H-M 'P 63/m m c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' '-y,-x,z' 'y,x,-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x,x-y,z' '-x,-x+y,-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,1/2-z' 'y,-x+y,1/2+z' '-x+y,y,z' 'x-y,-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Ag 0.33333 0.66667 0.25000 0.86500 Sb 0.33333 0.66667 0.25000 0.13400 Hg 0.33333 0.66667 0.25000 0.00100