data_global _chemical_name_mineral 'Albite' loop_ _publ_author_name 'Meneghinello E' 'Alberti A' 'Cruciani G' _journal_name_full 'American Mineralogist' _journal_volume 84 _journal_year 1999 _journal_page_first 1144 _journal_page_last 1151 _publ_section_title ; Order-disorder process in the tetrahedral sites af albite Sample: 1090-12d ; _database_code_amcsd 0002271 _chemical_compound_source 'Stintino, Sardinia, Italy' _chemical_formula_sum 'Na.996 Ca.01 K.004 (Al Si3) O8' _cell_length_a 8.152 _cell_length_b 12.831 _cell_length_c 7.110 _cell_angle_alpha 93.46 _cell_angle_beta 116.52 _cell_angle_gamma 89.72 _cell_volume 664.026 _exptl_crystal_density_diffrn 2.628 _symmetry_space_group_name_H-M 'C -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' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Na 0.27270 0.00200 0.13730 0.99600 Ca 0.27270 0.00200 0.13730 0.01000 K 0.27270 0.00200 0.13730 0.00400 Al1o 0.00910 0.16670 0.21350 0.43000 Si1o 0.00910 0.16670 0.21350 0.57000 Si1m 0.00490 0.81590 0.23070 0.75000 Al1m 0.00490 0.81590 0.23070 0.25000 Si2o 0.69140 0.10890 0.32030 0.83000 Al2o 0.69140 0.10890 0.32030 0.17000 Si2m 0.68510 0.87870 0.35490 0.85000 Al2m 0.68510 0.87870 0.35490 0.15000 OA1 0.00480 0.13490 0.98100 1.00000 OA2 0.59440 0.99290 0.27950 1.00000 OBo 0.81960 0.10940 0.19760 1.00000 OBm 0.81830 0.84870 0.24750 1.00000 OCo 0.01770 0.29290 0.27400 1.00000 OCm 0.02180 0.68950 0.22230 1.00000 ODo 0.19830 0.11130 0.38890 1.00000 ODm 0.18720 0.86810 0.42820 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 0.01410 0.12610 0.07030 0.00370 0.00520 -0.06200 Ca 0.01410 0.12610 0.07030 0.00370 0.00520 -0.06200 K 0.01410 0.12610 0.07030 0.00370 0.00520 -0.06200 Al1o 0.01170 0.01300 0.00960 -0.00190 0.00500 0.00130 Si1o 0.01170 0.01300 0.00960 -0.00190 0.00500 0.00130 Si1m 0.01120 0.01260 0.00930 0.00260 0.00500 0.00200 Al1m 0.01120 0.01260 0.00930 0.00260 0.00500 0.00200 Si2o 0.01120 0.01050 0.01220 0.00030 0.00510 0.00140 Al2o 0.01120 0.01050 0.01220 0.00030 0.00510 0.00140 Si2m 0.01140 0.01000 0.01210 0.00100 0.00520 0.00200 Al2m 0.01140 0.01000 0.01210 0.00100 0.00520 0.00200 OA1 0.02410 0.02030 0.01800 0.00440 0.01180 0.00430 OA2 0.01260 0.01510 0.01930 0.00110 0.00620 0.00360 OBo 0.01710 0.02790 0.02570 -0.00310 0.01290 0.00370 OBm 0.01670 0.02920 0.03160 0.00720 0.01490 0.00510 OCo 0.01470 0.02130 0.01910 -0.00260 0.00620 -0.00150 OCm 0.01580 0.01700 0.02020 0.00390 0.00500 0.00240 ODo 0.01810 0.02040 0.01510 0.00310 0.00580 0.00430 ODm 0.01800 0.01920 0.01620 -0.00070 0.00320 -0.00280