data_global _chemical_name_mineral 'Tapiolite-(Fe)' loop_ _publ_author_name 'Eicher S M' 'Greedan J E' 'Lushington K J' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 62 _journal_year 1986 _journal_page_first 220 _journal_page_last 230 _publ_section_title ; The magnetic properties of FeTa2O6. Magnetic structure and low-dimensional behavior ; _database_code_amcsd 0013576 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Fe Ta2 O6' _cell_length_a 4.749 _cell_length_b 4.749 _cell_length_c 9.192 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 207.307 _exptl_crystal_density_diffrn 8.230 _symmetry_space_group_name_H-M 'P 42/m n m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,z' 'y,x,-z' '1/2+y,1/2-x,1/2-z' '1/2-y,1/2+x,1/2+z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' 'x,y,-z' '-x,-y,z' 'y,x,z' '-y,-x,-z' '1/2-y,1/2+x,1/2-z' '1/2+y,1/2-x,1/2+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 Fe 0.00000 0.00000 0.00000 0.00887 Ta 0.00000 0.00000 0.33300 0.00633 O1 0.30700 0.30700 0.00000 0.00507 O2 0.29700 0.29700 0.32200 0.00887