data_global _amcsd_formula_title 'Na3Mg4LiSi12O30' loop_ _publ_author_name 'Nguyen N' 'Choisnet J' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 34 _journal_year 1980 _journal_page_first 1 _journal_page_last 9 _publ_section_title ; Silicates synthetiques a structure milarite ; _database_code_amcsd 0013394 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Na3 Mg4 Li Si12 O30' _cell_length_a 10.155 _cell_length_b 10.155 _cell_length_c 14.158 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 1264.423 _exptl_crystal_density_diffrn 2.601 _symmetry_space_group_name_H-M 'P 6/m c c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,-z' 'x-y,x,z' '-y,-x,1/2+z' 'y,x,1/2-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,-z' '-x,-y,z' 'x,x-y,1/2+z' '-x,-x+y,1/2-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,-z' 'y,-x+y,z' '-x+y,y,1/2+z' 'x-y,-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_occupancy _atom_site_U_iso_or_equiv NaA1 0.00000 0.00000 0.25000 1.00000 0.03293 NaA2 0.33333 0.66667 0.00000 1.00000 0.02660 MgM1 0.33333 0.66667 0.25000 1.00000 0.01140 MgM2 0.50000 0.00000 0.25000 0.66670 0.01520 LiM1 0.50000 0.00000 0.25000 0.33330 0.01520 Si 0.76300 0.11000 0.10800 1.00000 0.01013 O1 0.73800 0.13800 0.00000 1.00000 0.01773 O2 0.93700 0.20700 0.13600 1.00000 0.01267 O3 0.66900 0.16000 0.16400 1.00000 0.00887