data_global _chemical_name_mineral 'Domeykite' loop_ _publ_author_name 'Steenberg B' _journal_name_full 'Arkiv for Kemi, Mineralogi och Geologi' _journal_volume A12 _journal_year 1938 _journal_page_first 1 _journal_page_last 15 _publ_section_title ; The crystal structure of Cu3As and Cu3P ; _database_code_amcsd 0017892 _chemical_compound_source 'Mina San Antonio, Copiapa, Chile' _chemical_formula_sum 'As Cu3' _cell_length_a 9.611 _cell_length_b 9.611 _cell_length_c 9.611 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 887.781 _exptl_crystal_density_diffrn 7.947 _symmetry_space_group_name_H-M 'I -4 3 d' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '1/2-z,x,-y' '-z,1/2+x,1/2-y' '1/2-y,z,-x' '-y,1/2+z,1/2-x' '1/2-x,y,-z' '-x,1/2+y,1/2-z' '1/4+x,3/4-z,1/4-y' '3/4+x,1/4-z,3/4-y' '1/4+z,3/4-y,1/4-x' '3/4+z,1/4-y,3/4-x' '1/4+y,3/4-x,1/4-z' '3/4+y,1/4-x,3/4-z' '1/4+x,1/4+z,1/4+y' '3/4+x,3/4+z,3/4+y' '1/4+z,1/4+y,1/4+x' '3/4+z,3/4+y,3/4+x' '1/4+y,1/4+x,1/4+z' '3/4+y,3/4+x,3/4+z' '-z,1/2-x,y' '1/2-z,-x,1/2+y' '-y,1/2-z,x' '1/2-y,-z,1/2+x' '-x,1/2-y,z' '1/2-x,-y,1/2+z' '1/2+z,1/2-x,-y' '+z,-x,1/2-y' '1/2+y,1/2-z,-x' '+y,-z,1/2-x' '1/2+x,1/2-y,-z' '+x,-y,1/2-z' '3/4-x,3/4+z,1/4-y' '1/4-x,1/4+z,3/4-y' '3/4-z,3/4+y,1/4-x' '1/4-z,1/4+y,3/4-x' '3/4-y,3/4+x,1/4-z' '1/4-y,1/4+x,3/4-z' '3/4-x,1/4-z,1/4+y' '1/4-x,3/4-z,3/4+y' '3/4-z,1/4-y,1/4+x' '1/4-z,3/4-y,3/4+x' '3/4-y,1/4-x,1/4+z' '1/4-y,3/4-x,3/4+z' 'z,x,y' '1/2+z,1/2+x,1/2+y' 'y,z,x' '1/2+y,1/2+z,1/2+x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z As -0.03000 -0.03000 -0.03000 Cu -0.03000 0.12000 0.20000