data_global _chemical_name_mineral 'Dalyite' loop_ _publ_author_name 'Fleet S G' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 121 _journal_year 1965 _journal_page_first 349 _journal_page_last 368 _publ_section_title ; The crystal structure of dalyite ; _database_code_amcsd 0010622 _chemical_formula_sum '(K1.7 Na.3) Zr Si6 O15' _cell_length_a 7.371 _cell_length_b 7.730 _cell_length_c 6.912 _cell_angle_alpha 106.23 _cell_angle_beta 111.45 _cell_angle_gamma 100.00 _cell_volume 334.757 _exptl_crystal_density_diffrn 2.843 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,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 K 0.29320 0.18870 0.70830 0.85000 0.02406 Na 0.29320 0.18870 0.70830 0.15000 0.02406 Zr 0.00000 0.00000 0.00000 1.00000 0.00507 Si1 0.49750 0.68170 0.68520 1.00000 0.00279 Si2 0.16440 0.62260 0.84460 1.00000 0.00279 Si3 0.18500 0.73890 0.30920 1.00000 0.00279 O1 0.50000 0.50000 0.50000 1.00000 0.01267 O2 0.01200 0.57680 0.30290 1.00000 0.01013 O3 0.08140 0.80430 0.81270 1.00000 0.01013 O4 0.10240 0.91310 0.26790 1.00000 0.01013 O5 0.25110 0.64440 0.10580 1.00000 0.01013 O6 0.28100 0.20750 0.12540 1.00000 0.01013 O7 0.35650 0.60170 0.77870 1.00000 0.01013 O8 0.39040 0.80690 0.54950 1.00000 0.01013