data_global _chemical_name_mineral 'Banalsite' loop_ _publ_author_name 'Liferovich R P' 'Locock A J' 'Mitchell R H' 'Shpachenko A K' _journal_name_full 'The Canadian Mineralogist' _journal_volume 44 _journal_year 2006 _journal_page_first 533 _journal_page_last 546 _publ_section_title ; The crystal structure of stronalsite and a redetermination of the structure of banalsite ; _database_code_amcsd 0006094 _chemical_compound_source 'Benallt mine, Wales' _chemical_formula_sum 'Ba Na2 Al4 Si4 O16' _cell_length_a 8.5400 _cell_length_b 10.0127 _cell_length_c 16.7897 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1435.661 _exptl_crystal_density_diffrn 3.052 _symmetry_space_group_name_H-M 'I b a 2' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' 'x,-y,1/2+z' '1/2+x,1/2-y,+z' '-x,y,1/2+z' '1/2-x,1/2+y,+z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ba 0.00000 0.50000 0.15450 0.01120 Na -0.04210 0.32580 -0.09540 0.01850 Al1 0.07060 0.18620 0.06350 0.00860 Al2 -0.27930 0.44530 0.31110 0.00960 Si1 -0.26520 0.55960 -0.00250 0.00760 Si2 0.07890 0.80620 0.24620 0.00840 O1 -0.21410 0.48460 0.40760 0.01290 O2 -0.00560 0.20770 0.15820 0.01470 O3 -0.07520 0.14480 -0.00510 0.01190 O4 0.22230 0.91300 0.24920 0.01090 O5 0.22580 0.07140 0.05480 0.01330 O6 -0.44990 0.35380 0.31120 0.01080 O7 0.12880 0.65530 0.27220 0.01190 O8 -0.12181 0.65220 0.03170 0.01130