data_global _chemical_name_mineral 'Gudmundite' loop_ _publ_author_name 'Buerger M J' _journal_name_full 'American Mineralogist' _journal_volume 24 _journal_year 1939 _journal_page_first 183 _journal_page_last 184 _publ_section_title ; The crystal structure of gudmundite ; _database_code_amcsd 0000021 _chemical_formula_sum 'Fe Sb S' _cell_length_a 10.00 _cell_length_b 5.93 _cell_length_c 6.73 _cell_angle_alpha 90 _cell_angle_beta 90. _cell_angle_gamma 90 _cell_volume 399.089 _exptl_crystal_density_diffrn 6.979 _symmetry_space_group_name_H-M 'B 1 21/d 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,y,1/2+z' '3/4-x,1/2+y,3/4-z' '1/4-x,1/2+y,1/4-z' '3/4+x,1/2-y,3/4+z' '1/4+x,1/2-y,1/4+z' '1/2-x,-y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Fe 0.00000 0.01500 0.30000 Sb 0.14000 0.13100 -0.00800 S 0.15600 0.14500 0.51100