data_global _chemical_name_mineral 'Dyscrasite' loop_ _publ_author_name 'Scott J D' _journal_name_full 'The Canadian Mineralogist' _journal_volume 14 _journal_year 1976 _journal_page_first 139 _journal_page_last 142 _publ_section_title ; Refinement of the crystal structure of dyscrasite, and its implications for the structure of allargentum ; _database_code_amcsd 0005121 _chemical_formula_sum 'Sb Ag3' _cell_length_a 3.008 _cell_length_b 4.828 _cell_length_c 5.214 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 75.721 _exptl_crystal_density_diffrn 9.766 _symmetry_space_group_name_H-M 'P m m 2' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,z' '-x,y,z' '-x,-y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Sb 0.00000 0.00000 -0.02488 Ag1 0.50000 0.00000 0.50000 Ag2 0.00000 0.50000 0.64808 Ag3 0.50000 0.50000 0.16016 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 Sb 0.01728 0.01039 0.01363 0.00000 0.00000 0.00000 Ag1 0.03832 0.03247 0.00372 0.00000 0.00000 0.00000 Ag2 0.00770 0.01724 0.01157 0.00000 0.00000 0.00000 Ag3 0.04171 0.00744 0.01584 0.00000 0.00000 0.00000