data_global _chemical_name_mineral 'Bonshtedtite' loop_ _publ_author_name 'Tjy C T L' 'Nadezhina T N' 'Pobedimskaya E A' 'Khomyakov A P' _journal_name_full 'Mineralogiceskij Zhurnal' _journal_volume 6 _journal_year 1984 _journal_page_first 79 _journal_page_last 84 _publ_section_title ; Crystal chemical characteristics of bradleyite, sidorenkite and bonshtedtite Note: atomic parameters from ICSD ; _database_code_amcsd 0018485 _chemical_formula_sum 'Na3 Fe P C O7' _cell_length_a 8.955 _cell_length_b 5.149 _cell_length_c 6.629 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90.45 _cell_volume 305.649 _exptl_crystal_density_diffrn 3.040 _symmetry_space_group_name_H-M 'P 1 1 21/m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-y,1/2+z' 'x,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 Na1 0.26330 0.24970 0.00320 0.01596 Na2 0.91770 0.23460 0.75000 0.02102 Fe 0.64470 0.22170 0.25000 0.01013 P 0.58590 0.29670 0.75000 0.00697 C 0.93920 0.26960 0.25000 0.00950 O1 0.87410 0.04780 0.25000 0.01368 O2 0.85720 0.47530 0.25000 0.01507 O3 0.08080 0.28500 0.25000 0.01786 O4 0.68050 0.22090 0.56300 0.01355 O5 0.43430 0.16300 0.75000 0.01127 O6 0.43900 0.40650 0.25000 0.01203