data_global _chemical_name_mineral 'Albite' loop_ _publ_author_name 'Winter J K' 'Okamura F P' 'Ghose S' _journal_name_full 'American Mineralogist' _journal_volume 64 _journal_year 1979 _journal_page_first 409 _journal_page_last 423 _publ_section_title ; A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition T = 980 C, sample = monalbite ; _database_code_amcsd 0000720 _chemical_compound_source 'Tiburon, Marin County, California, USA' _chemical_formula_sum '(Na.998 K.002) (Si3 Al) O8' _cell_length_a 8.274 _cell_length_b 12.991 _cell_length_c 7.144 _cell_angle_alpha 90 _cell_angle_beta 116.13 _cell_angle_gamma 90 _cell_volume 689.410 _exptl_crystal_density_diffrn 2.527 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Na 0.27890 0.00000 0.13780 0.99750 K 0.27890 0.00000 0.13780 0.00250 Si1 0.00810 0.17840 0.22330 0.75000 Al1 0.00810 0.17840 0.22330 0.25000 Si2 0.69590 0.11630 0.34200 0.75000 Al2 0.69590 0.11630 0.34200 0.25000 Oa1 0.00000 0.13930 0.00000 1.00000 Oa2 0.60630 0.00000 0.28350 1.00000 Ob 0.82330 0.13500 0.22520 1.00000 Oc 0.02570 0.30440 0.25350 1.00000 Od 0.18910 0.12290 0.40490 1.00000 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 Na 0.06821 0.22315 0.16151 0.00000 0.02703 0.00000 K 0.06821 0.22315 0.16151 0.00000 0.02703 0.00000 Si1 0.03159 0.03591 0.02647 -0.00538 0.01279 -0.00084 Al1 0.03159 0.03591 0.02647 -0.00538 0.01279 -0.00084 Si2 0.02907 0.02992 0.03314 -0.00244 0.01134 -0.00084 Al2 0.02907 0.02992 0.03314 -0.00244 0.01134 -0.00084 Oa1 0.07995 0.06156 0.03751 0.00000 0.02969 0.00000 Oa2 0.03970 0.03249 0.05460 0.00000 0.01255 0.00000 Ob 0.05116 0.08635 0.07732 -0.01760 0.03934 0.00084 Oc 0.04920 0.04104 0.06877 -0.00929 0.02052 -0.00549 Od 0.05395 0.07267 0.03835 0.01173 0.00507 0.01013