data_global _chemical_name_mineral 'Realgar' loop_ _publ_author_name 'Ito T' 'Morimoto N' 'Sadanaga R' _journal_name_full 'Acta Crystallographica' _journal_volume 5 _journal_year 1952 _journal_page_first 775 _journal_page_last 782 _publ_section_title ; The crystal structure of realgar ; _database_code_amcsd 0009149 _chemical_compound_source 'Saimoko, Japan' _chemical_formula_sum 'As S' _cell_length_a 9.27 _cell_length_b 13.50 _cell_length_c 6.56 _cell_angle_alpha 90 _cell_angle_beta 106.62 _cell_angle_gamma 90 _cell_volume 786.654 _exptl_crystal_density_diffrn 3.613 _symmetry_space_group_name_H-M 'P 1 21/n 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv As1 0.11800 0.02400 -0.24100 0.01646 As2 0.42500 -0.14000 -0.14200 0.01646 As3 0.31800 -0.12700 0.18100 0.01646 As4 0.03800 -0.16100 -0.29000 0.01646 S1 0.34600 0.00800 -0.29500 0.01646 S2 0.21300 0.02400 0.12000 0.01646 S3 0.24500 -0.22500 -0.36300 0.01646 S4 0.11500 -0.21500 0.04800 0.01646