data_global _chemical_name_mineral 'Bonazziite' loop_ _publ_author_name 'Bonazzi P' 'Bindi L' 'Pratesi G' 'Menchetti S' _journal_name_full 'American Mineralogist' _journal_volume 91 _journal_year 2006 _journal_page_first 1323 _journal_page_last 1330 _publ_section_title ; Light-induced changes in molecular arsenic sulfides: State of the art and new evidence by single-crystal X-ray diffraction Sample: B2-0 ; _database_code_amcsd 0004217 _chemical_formula_sum 'As S' _cell_length_a 9.958 _cell_length_b 9.311 _cell_length_c 8.867 _cell_angle_alpha 90 _cell_angle_beta 102.57 _cell_angle_gamma 90 _cell_volume 802.433 _exptl_crystal_density_diffrn 3.542 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-x,1/2-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 -0.00187 -0.20545 0.05489 0.02920 As2 -0.16022 -0.40157 0.12611 0.02860 S1 0.00000 -0.05400 0.25000 0.03400 S2 0.00000 -0.55360 0.25000 0.03630 S3 -0.20120 -0.30400 0.34030 0.03500 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 As1 0.03480 0.03390 0.01880 0.00540 0.00600 0.00670 As2 0.02360 0.03170 0.02640 0.00050 -0.00360 -0.00650 S1 0.04430 0.02260 0.03460 0.00000 0.00760 0.00000 S2 0.03610 0.02190 0.04500 0.00000 -0.00430 0.00000 S3 0.02620 0.04930 0.03180 -0.00440 0.01170 -0.00640