data_global _chemical_name_mineral 'Nosean' loop_ _publ_author_name 'Hassan I' 'Grundy H D' _journal_name_full 'The Canadian Mineralogist' _journal_volume 27 _journal_year 1989 _journal_page_first 165 _journal_page_last 172 _publ_section_title ; The structure of nosean, ideally Na8(Al6Si6O24)SO4.H2O Note: O2 z-coordinate has been corrected according to the ICSD ; _database_code_amcsd 0005223 _chemical_formula_sum 'Al3 Si3 O14.44 Na4.04 S.49 H.96' _cell_length_a 9.084 _cell_length_b 9.084 _cell_length_c 9.084 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 749.603 _exptl_crystal_density_diffrn 2.241 _symmetry_space_group_name_H-M 'P -4 3 n' loop_ _space_group_symop_operation_xyz 'x,y,z' '-z,x,-y' '-y,z,-x' '-x,y,-z' '1/2+x,1/2-z,1/2-y' '1/2+z,1/2-y,1/2-x' '1/2+y,1/2-x,1/2-z' '1/2+x,1/2+z,1/2+y' '1/2+z,1/2+y,1/2+x' '1/2+y,1/2+x,1/2+z' '-z,-x,y' '-y,-z,x' '-x,-y,z' 'z,-x,-y' 'y,-z,-x' 'x,-y,-z' '1/2-x,1/2+z,1/2-y' '1/2-z,1/2+y,1/2-x' '1/2-y,1/2+x,1/2-z' '1/2-x,1/2-z,1/2+y' '1/2-z,1/2-y,1/2+x' '1/2-y,1/2-x,1/2+z' 'z,x,y' 'y,z,x' 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 Al 0.25000 0.00000 0.50000 1.00000 ? Si 0.25000 0.50000 0.00000 1.00000 ? O1 0.13700 0.14600 0.54400 0.50000 0.03900 O2 0.15300 0.16000 0.47500 0.50000 0.03500 Na1 0.30300 0.30300 0.30300 0.21000 0.02100 Na2 0.67400 0.67400 0.67400 0.34000 0.04600 Na3 0.73300 0.73300 0.73300 0.46000 0.02900 Wat3 0.47000 0.47000 0.47000 0.12000 0.02400 S 0.00000 0.00000 0.00000 0.49000 0.16100 O4 0.40500 0.40500 0.40500 0.49000 0.13100 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 Al 0.03900 0.03900 0.03900 0.00000 0.00000 0.00000 Si 0.02000 0.02000 0.02000 0.03200 0.03200 0.03200