data_global _chemical_name_mineral 'Cryolithionite' loop_ _publ_author_name 'Geller S' _journal_name_full 'American Mineralogist' _journal_volume 56 _journal_year 1971 _journal_page_first 18 _journal_page_last 23 _publ_section_title ; Refinement of the crystal structure of cryolithionite, {Na3}[Al2](Li3)F12 ; _database_code_amcsd 220 _chemical_formula_sum 'Na3 Al2 Li3 F12' _cell_length_a 12.122 _cell_length_b 12.122 _cell_length_c 12.122 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_volume 1781.241 _exptl_crystal_density_diffrn 2.772 _symmetry_space_group_name_H-M 'I a -3 d' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' 'z,1/2-x,1/2+y' '1/2+z,-x,+y' '-y,1/2+z,1/2-x' '1/2-y,+z,-x' 'x,1/2-y,1/2+z' '1/2+x,-y,+z' '-z,1/2+x,1/2-y' '1/2-z,+x,-y' 'y,1/2-z,1/2+x' '1/2+y,-z,+x' '-x,1/2+y,1/2-z' '1/2-x,+y,-z' '3/4+x,1/4-z,3/4-y' '1/4+x,3/4-z,1/4-y' '3/4-z,1/4+y,3/4+x' '1/4-z,3/4+y,1/4+x' '3/4+y,1/4-x,3/4-z' '1/4+y,3/4-x,1/4-z' '3/4-x,1/4+z,3/4+y' '1/4-x,3/4+z,1/4+y' '3/4+z,1/4-y,3/4-x' '1/4+z,3/4-y,1/4-x' '3/4-y,1/4+x,3/4+z' '1/4-y,3/4+x,1/4+z' '1/4+x,1/4+z,1/4+y' '3/4+x,3/4+z,3/4+y' '1/4-z,1/4-y,1/4-x' '3/4-z,3/4-y,3/4-x' '1/4+y,1/4+x,1/4+z' '3/4+y,3/4+x,3/4+z' '1/4-x,1/4-z,1/4-y' '3/4-x,3/4-z,3/4-y' '1/4+z,1/4+y,1/4+x' '3/4+z,3/4+y,3/4+x' '1/4-y,1/4-x,1/4-z' '3/4-y,3/4-x,3/4-z' '1/2+z,x,1/2-y' '+z,1/2+x,-y' '1/2-y,-z,1/2+x' '-y,1/2-z,+x' '1/2+x,y,1/2-z' '+x,1/2+y,-z' '1/2-z,-x,1/2+y' '-z,1/2-x,+y' '1/2+y,z,1/2-x' '+y,1/2+z,-x' '1/2-x,-y,1/2+z' '-x,1/2-y,+z' '1/2-z,1/2+x,y' '-z,+x,1/2+y' '1/2+y,1/2-z,-x' '+y,-z,1/2-x' '1/2-x,1/2+y,z' '-x,+y,1/2+z' '1/2+z,1/2-x,-y' '+z,-x,1/2-y' '1/2-y,1/2+z,x' '-y,+z,1/2+x' '1/2+x,1/2-y,-z' '+x,-y,1/2-z' '3/4-x,3/4+z,1/4-y' '1/4-x,1/4+z,3/4-y' '3/4+z,3/4-y,1/4+x' '1/4+z,1/4-y,3/4+x' '3/4-y,3/4+x,1/4-z' '1/4-y,1/4+x,3/4-z' '3/4+x,3/4-z,1/4+y' '1/4+x,1/4-z,3/4+y' '3/4-z,3/4+y,1/4-x' '1/4-z,1/4+y,3/4-x' '3/4+y,3/4-x,1/4+z' '1/4+y,1/4-x,3/4+z' '1/4-x,3/4-z,3/4+y' '3/4-x,1/4-z,1/4+y' '1/4+z,3/4+y,3/4-x' '3/4+z,1/4+y,1/4-x' '1/4-y,3/4-x,3/4+z' '3/4-y,1/4-x,1/4+z' '1/4+x,3/4+z,3/4-y' '3/4+x,1/4+z,1/4-y' '1/4-z,3/4-y,3/4+x' '3/4-z,1/4-y,1/4+x' '1/4+y,3/4+x,3/4-z' '3/4+y,1/4+x,1/4-z' '-z,-x,-y' '1/2-z,1/2-x,1/2-y' 'y,z,x' '1/2+y,1/2+z,1/2+x' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' 'z,x,y' '1/2+z,1/2+x,1/2+y' '-y,-z,-x' '1/2-y,1/2-z,1/2-x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Na 0.125 0.0 0.25 Al 0.0 0.0 0.0 Li 0.375 0.0 0.25 F -0.02888 0.04268 0.13989 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 Na 0.00849 0.01876 0.01876 0.0 0.0 0.00238 Al 0.00536 0.00536 0.00536 0.0006 0.0006 0.0006 Li 0.00648 0.01407 0.01407 0.0 0.0 0.0 F 0.01392 0.01496 0.00849 0.00067 0.00208 -0.00074