data_global _chemical_name_mineral 'Tetrataenite' loop_ _publ_author_name 'Tagai T' 'Takeda H' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 210 _journal_year 1995 _journal_page_first 14 _journal_page_last 18 _publ_section_title ; Superstructure of tetrataenite from the Saint Severin meteorite ; _database_code_amcsd 0011063 _chemical_compound_source 'Saint Severin meteorite, Charente, France' _chemical_formula_sum '(Ni.493 Fe.508)' _cell_length_a 3.581 _cell_length_b 3.582 _cell_length_c 3.587 _cell_angle_alpha 90 _cell_angle_beta 90.04 _cell_angle_gamma 90 _cell_volume 46.011 _exptl_crystal_density_diffrn 8.264 _symmetry_space_group_name_H-M 'P 1 m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy NiM1 0.00000 0.00000 0.00000 0.84000 FeM1 0.00000 0.00000 0.00000 0.16000 NiM2 0.48200 0.00000 0.49300 0.85000 FeM2 0.48200 0.00000 0.49300 0.15000 FeM3 0.50800 0.50000 0.99400 0.85000 NiM3 0.50800 0.50000 0.99400 0.15000 FeM4 0.01100 0.50000 0.52000 0.87000 NiM4 0.01100 0.50000 0.52000 0.13000 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 NiM1 0.00585 0.00260 0.00130 0.00000 -0.00130 0.00000 FeM1 0.00585 0.00260 0.00130 0.00000 -0.00130 0.00000 NiM2 0.00130 0.00130 0.00261 0.00000 -0.00065 0.00000 FeM2 0.00130 0.00130 0.00261 0.00000 -0.00065 0.00000 FeM3 0.00195 0.00195 0.00391 0.00000 0.00195 0.00000 NiM3 0.00195 0.00195 0.00391 0.00000 0.00195 0.00000 FeM4 0.00910 0.02860 0.02151 0.00000 0.00651 0.00000 NiM4 0.00910 0.02860 0.02151 0.00000 0.00651 0.00000