data_global _chemical_name_mineral 'Rucklidgeite' loop_ _publ_author_name 'Zhukova T B' 'Zaslavskii A I' _journal_name_full 'Zhurnal Strukturnoi Khimii' _journal_volume 11 _journal_year 1970 _journal_page_first 462 _journal_page_last 468 _publ_section_title ; X-ray structure determination of PbBi4Te7 ; _database_code_amcsd 0015894 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Pb.57 Bi2.28 Te4' _cell_length_a 4.45 _cell_length_b 4.45 _cell_length_c 41.532 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 712.252 _exptl_crystal_density_diffrn 7.728 _symmetry_space_group_name_H-M 'R -3 m' 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,z' '2/3+x,1/3+x-y,1/3+z' '1/3+x,2/3+x-y,2/3+z' 'y,x,-z' '2/3+y,1/3+x,1/3-z' '1/3+y,2/3+x,2/3-z' '-x+y,y,z' '2/3-x+y,1/3+y,1/3+z' '1/3-x+y,2/3+y,2/3+z' '-x,-x+y,-z' '2/3-x,1/3-x+y,1/3-z' '1/3-x,2/3-x+y,2/3-z' '-y,-x,z' '2/3-y,1/3-x,1/3+z' '1/3-y,2/3-x,2/3+z' 'x-y,-y,-z' '2/3+x-y,1/3-y,1/3-z' '1/3+x-y,2/3-y,2/3-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' '-x,-y,-z' '2/3-x,1/3-y,1/3-z' '1/3-x,2/3-y,2/3-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 _atom_site_occupancy Pb1 0.00000 0.00000 0.00000 0.19000 Bi1 0.00000 0.00000 0.00000 0.76000 Pb2 0.00000 0.00000 0.42900 0.19000 Bi2 0.00000 0.00000 0.42900 0.76000 Te1 0.00000 0.00000 0.28800 1.00000 Te2 0.00000 0.00000 0.13600 1.00000