data_global _chemical_name_mineral 'Rooseveltite' loop_ _publ_author_name 'Bedlivy D' 'Mereiter K' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 38 _journal_year 1982 _journal_page_first 1559 _journal_page_last 1561 _publ_section_title ; Structure of alpha-BiAsO4 (rooseveltite) Note: AnisoU's from ICSD ; _database_code_amcsd 0009764 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Bi As O4' _cell_length_a 6.879 _cell_length_b 7.159 _cell_length_c 6.732 _cell_angle_alpha 90 _cell_angle_beta 104.84 _cell_angle_gamma 90 _cell_volume 320.471 _exptl_crystal_density_diffrn 7.211 _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 Bi 0.28164 0.13373 0.08411 0.01191 As 0.29886 0.16251 0.61232 0.00659 O1 0.26180 0.00110 0.42790 0.01140 O2 0.38700 0.35360 0.51910 0.01393 O3 0.47310 0.10250 0.83180 0.01140 O4 0.10900 0.20740 0.71990 0.01393 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 Bi 0.01330 0.01160 0.01080 0.00180 0.00430 -0.00090 As 0.00680 0.00730 0.00560 -0.00040 0.00140 0.00010