data_global _chemical_name_mineral 'Sazykinaite-(Y)' loop_ _publ_author_name 'Rastsvetaeva R K' 'Khomyakov A P' _journal_name_full 'Kristallografiya' _journal_volume 37 _journal_year 1992 _journal_page_first 1561 _journal_page_last 1563 _publ_section_title ; Crystal structure of a rare earth analog of hilairite ; _database_code_amcsd 0014193 _chemical_formula_sum 'Na4.4 K.6 (Zr.7 Ti.2 Nb.1) (Y.8 Dy.1 Gd.1) Si6 O24 H12' _cell_length_a 10.825 _cell_length_b 10.825 _cell_length_c 15.809 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 1604.319 _exptl_crystal_density_diffrn 2.717 _symmetry_space_group_name_H-M 'R 3 2' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' '-x,-x+y,-z' '2/3-x,1/3-x+y,1/3-z' '1/3-x,2/3-x+y,2/3-z' 'y,x,-z' '2/3+y,1/3+x,1/3-z' '1/3+y,2/3+x,2/3-z' 'x-y,-y,-z' '2/3+x-y,1/3-y,1/3-z' '1/3+x-y,2/3-y,2/3-z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+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 Na1 0.00000 0.00000 0.19550 1.00000 0.02786 Na2 0.35900 0.00000 0.50000 0.80000 0.05193 K 0.35900 0.00000 0.50000 0.20000 0.05193 ZrM1 0.00000 0.00000 0.00000 0.70000 0.00861 TiM1 0.00000 0.00000 0.00000 0.20000 0.00861 NbM1 0.00000 0.00000 0.00000 0.10000 0.00861 YM2 0.00000 0.00000 0.50000 0.80000 0.00836 DyM2 0.00000 0.00000 0.50000 0.10000 0.00836 GdM2 0.00000 0.00000 0.50000 0.10000 0.00836 Si 0.42160 0.40940 0.24720 1.00000 0.00659 O1 0.09600 0.17600 0.07950 1.00000 0.01267 O2 0.10400 0.20700 0.57320 1.00000 0.01520 O3 0.65900 0.00000 0.00000 1.00000 0.01140 O4 0.64100 0.00000 0.50000 1.00000 0.01646 Ow5 0.50100 0.14000 0.05930 1.00000 0.02153 H1 0.53000 0.43000 0.04000 1.00000 ? H2 0.48000 0.68000 0.00000 1.00000 ?