data_global _chemical_name_mineral 'Periclase' loop_ _publ_author_name 'Hazen R M' _journal_name_full 'American Mineralogist' _journal_volume 61 _journal_year 1976 _journal_page_first 266 _journal_page_last 271 _publ_section_title ; Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase T = 24 C, P = 1 atm, standard mount ; _database_code_amcsd 501 _chemical_formula_sum 'Mg O' _cell_length_a 4.211 _cell_length_b 4.211 _cell_length_c 4.211 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_volume 74.672 _exptl_crystal_density_diffrn 3.585 _symmetry_space_group_name_H-M 'F m 3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,y,1/2+z' '1/2+x,1/2+y,z' 'z,-x,y' 'z,1/2-x,1/2+y' '1/2+z,-x,1/2+y' '1/2+z,1/2-x,y' '-y,z,-x' '-y,1/2+z,1/2-x' '1/2-y,z,1/2-x' '1/2-y,1/2+z,-x' 'x,-y,z' 'x,1/2-y,1/2+z' '1/2+x,-y,1/2+z' '1/2+x,1/2-y,z' '-z,x,-y' '-z,1/2+x,1/2-y' '1/2-z,x,1/2-y' '1/2-z,1/2+x,-y' 'y,-z,x' 'y,1/2-z,1/2+x' '1/2+y,-z,1/2+x' '1/2+y,1/2-z,x' '-x,y,-z' '-x,1/2+y,1/2-z' '1/2-x,y,1/2-z' '1/2-x,1/2+y,-z' 'x,-z,-y' 'x,1/2-z,1/2-y' '1/2+x,-z,1/2-y' '1/2+x,1/2-z,-y' '-z,y,x' '-z,1/2+y,1/2+x' '1/2-z,y,1/2+x' '1/2-z,1/2+y,x' 'y,-x,-z' 'y,1/2-x,1/2-z' '1/2+y,-x,1/2-z' '1/2+y,1/2-x,-z' '-x,z,y' '-x,1/2+z,1/2+y' '1/2-x,z,1/2+y' '1/2-x,1/2+z,y' 'z,-y,-x' 'z,1/2-y,1/2-x' '1/2+z,-y,1/2-x' '1/2+z,1/2-y,-x' '-y,x,z' '-y,1/2+x,1/2+z' '1/2-y,x,1/2+z' '1/2-y,1/2+x,z' 'x,z,y' 'x,1/2+z,1/2+y' '1/2+x,z,1/2+y' '1/2+x,1/2+z,y' '-z,-y,-x' '-z,1/2-y,1/2-x' '1/2-z,-y,1/2-x' '1/2-z,1/2-y,-x' 'y,x,z' 'y,1/2+x,1/2+z' '1/2+y,x,1/2+z' '1/2+y,1/2+x,z' '-x,-z,-y' '-x,1/2-z,1/2-y' '1/2-x,-z,1/2-y' '1/2-x,1/2-z,-y' 'z,y,x' 'z,1/2+y,1/2+x' '1/2+z,y,1/2+x' '1/2+z,1/2+y,x' '-y,-x,-z' '-y,1/2-x,1/2-z' '1/2-y,-x,1/2-z' '1/2-y,1/2-x,-z' 'z,x,-y' 'z,1/2+x,1/2-y' '1/2+z,x,1/2-y' '1/2+z,1/2+x,-y' '-y,-z,x' '-y,1/2-z,1/2+x' '1/2-y,-z,1/2+x' '1/2-y,1/2-z,x' 'x,y,-z' 'x,1/2+y,1/2-z' '1/2+x,y,1/2-z' '1/2+x,1/2+y,-z' '-z,-x,y' '-z,1/2-x,1/2+y' '1/2-z,-x,1/2+y' '1/2-z,1/2-x,y' 'y,z,-x' 'y,1/2+z,1/2-x' '1/2+y,z,1/2-x' '1/2+y,1/2+z,-x' '-x,-y,z' '-x,1/2-y,1/2+z' '1/2-x,-y,1/2+z' '1/2-x,1/2-y,z' '-z,x,y' '-z,1/2+x,1/2+y' '1/2-z,x,1/2+y' '1/2-z,1/2+x,y' 'y,-z,-x' 'y,1/2-z,1/2-x' '1/2+y,-z,1/2-x' '1/2+y,1/2-z,-x' '-x,y,z' '-x,1/2+y,1/2+z' '1/2-x,y,1/2+z' '1/2-x,1/2+y,z' 'z,-x,-y' 'z,1/2-x,1/2-y' '1/2+z,-x,1/2-y' '1/2+z,1/2-x,-y' '-y,z,x' '-y,1/2+z,1/2+x' '1/2-y,z,1/2+x' '1/2-y,1/2+z,x' 'x,-y,-z' 'x,1/2-y,1/2-z' '1/2+x,-y,1/2-z' '1/2+x,1/2-y,-z' '-x,z,-y' '-x,1/2+z,1/2-y' '1/2-x,z,1/2-y' '1/2-x,1/2+z,-y' 'z,-y,x' 'z,1/2-y,1/2+x' '1/2+z,-y,1/2+x' '1/2+z,1/2-y,x' '-y,x,-z' '-y,1/2+x,1/2-z' '1/2-y,x,1/2-z' '1/2-y,1/2+x,-z' 'x,-z,y' 'x,1/2-z,1/2+y' '1/2+x,-z,1/2+y' '1/2+x,1/2-z,y' '-z,y,-x' '-z,1/2+y,1/2-x' '1/2-z,y,1/2-x' '1/2-z,1/2+y,-x' 'y,-x,z' 'y,1/2-x,1/2+z' '1/2+y,-x,1/2+z' '1/2+y,1/2-x,z' '-x,-z,y' '-x,1/2-z,1/2+y' '1/2-x,-z,1/2+y' '1/2-x,1/2-z,y' 'z,y,-x' 'z,1/2+y,1/2-x' '1/2+z,y,1/2-x' '1/2+z,1/2+y,-x' '-y,-x,z' '-y,1/2-x,1/2+z' '1/2-y,-x,1/2+z' '1/2-y,1/2-x,z' 'x,z,-y' 'x,1/2+z,1/2-y' '1/2+x,z,1/2-y' '1/2+x,1/2+z,-y' '-z,-y,x' '-z,1/2-y,1/2+x' '1/2-z,-y,1/2+x' '1/2-z,1/2-y,x' 'y,x,-z' 'y,1/2+x,1/2-z' '1/2+y,x,1/2-z' '1/2+y,1/2+x,-z' '-z,-x,-y' '-z,1/2-x,1/2-y' '1/2-z,-x,1/2-y' '1/2-z,1/2-x,-y' 'y,z,x' 'y,1/2+z,1/2+x' '1/2+y,z,1/2+x' '1/2+y,1/2+z,x' '-x,-y,-z' '-x,1/2-y,1/2-z' '1/2-x,-y,1/2-z' '1/2-x,1/2-y,-z' 'z,x,y' 'z,1/2+x,1/2+y' '1/2+z,x,1/2+y' '1/2+z,1/2+x,y' '-y,-z,-x' '-y,1/2-z,1/2-x' '1/2-y,-z,1/2-x' '1/2-y,1/2-z,-x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Mg 0.0 0.0 0.0 0.00431 O 0.5 0.5 0.5 0.00469