data_global _chemical_name_mineral 'Ilmenite' loop_ _publ_author_name 'Yamanaka T' 'Komatsu Y' 'Nomori H' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 34 _journal_year 2007 _journal_page_first 307 _journal_page_last 318 _publ_section_title ; Electron density distribution of FeTiO3 ilmenite under high pressure analyzed by MEM using single crystal diffraction intensities Sample: P = 8.2 GPa ; _database_code_amcsd 0009085 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Fe Ti O3' _cell_length_a 5.0398 _cell_length_b 5.0398 _cell_length_c 13.7968 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 303.484 _exptl_crystal_density_diffrn 4.981 _symmetry_space_group_name_H-M 'R -3' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'y,-x+y,-z' '2/3+y,1/3-x+y,1/3-z' '1/3+y,2/3-x+y,2/3-z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' '-x,-y,-z' '2/3-x,1/3-y,1/3-z' '1/3-x,2/3-y,2/3-z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' 'x-y,x,-z' '2/3+x-y,1/3+x,1/3-z' '1/3+x-y,2/3+x,2/3-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 0.35611 0.00279 Ti 0.00000 0.00000 0.14695 0.00367 O 0.31850 0.02330 0.24600 0.00443 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 Fe 0.00210 0.00210 0.00414 0.00105 0.00000 0.00000 Ti 0.00400 0.00400 0.00298 0.00200 0.00000 0.00000 O 0.00430 0.00510 0.00331 0.00180 0.00025 0.00025