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: 1060-6d ; _database_code_amcsd 0002266 _chemical_compound_source 'Stintino, Sardinia, Italy' _chemical_formula_sum 'Na.996 Ca.01 K.004 (Al Si3) O8' _cell_length_a 8.170 _cell_length_b 12.811 _cell_length_c 7.141 _cell_angle_alpha 93.79 _cell_angle_beta 116.53 _cell_angle_gamma 88.09 _cell_volume 667.248 _exptl_crystal_density_diffrn 2.615 _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 0.27060 0.99120 0.14560 0.99600 Ca 0.27060 0.99120 0.14560 0.01000 K 0.27060 0.99120 0.14560 0.00400 Al1o 0.00910 0.16920 0.21020 0.84000 Si1o 0.00910 0.16920 0.21020 0.16000 Si1m 0.00420 0.81940 0.23560 0.93000 Al1m 0.00420 0.81940 0.23560 0.07000 Si2o 0.69300 0.11090 0.31790 0.95000 Al2o 0.69300 0.11090 0.31790 0.05000 Si2m 0.68420 0.88150 0.35880 0.96000 Al2m 0.68420 0.88150 0.35880 0.04000 OA1 0.00460 0.13350 0.97110 1.00000 OA2 0.59440 0.99640 0.28130 1.00000 OBo 0.81440 0.11260 0.19360 1.00000 OBm 0.82110 0.85150 0.25530 1.00000 OCo 0.01540 0.30130 0.26970 1.00000 OCm 0.02440 0.69260 0.23080 1.00000 ODo 0.20360 0.11110 0.39000 1.00000 ODm 0.18300 0.86830 0.43300 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 0.01470 0.06680 0.04190 -0.00610 0.00990 -0.03310 Ca 0.01470 0.06680 0.04190 -0.00610 0.00990 -0.03310 K 0.01470 0.06680 0.04190 -0.00610 0.00990 -0.03310 Al1o 0.01210 0.00970 0.00940 -0.00290 0.00580 0.00040 Si1o 0.01210 0.00970 0.00940 -0.00290 0.00580 0.00040 Si1m 0.01080 0.00970 0.00850 0.00130 0.00520 0.00110 Al1m 0.01080 0.00970 0.00850 0.00130 0.00520 0.00110 Si2o 0.01100 0.00750 0.01110 -0.00090 0.00500 0.00060 Al2o 0.01100 0.00750 0.01110 -0.00090 0.00500 0.00060 Si2m 0.01030 0.00800 0.01110 -0.00030 0.00490 0.00110 Al2m 0.01030 0.00800 0.01110 -0.00030 0.00490 0.00110 OA1 0.02530 0.01560 0.01340 -0.00160 0.01160 0.00210 OA2 0.01220 0.00910 0.01690 -0.00080 0.00540 0.00120 OBo 0.01770 0.01910 0.02300 -0.00330 0.01320 0.00090 OBm 0.01920 0.01890 0.03050 0.00320 0.01700 -0.00010 OCo 0.01460 0.01470 0.01940 -0.00310 0.00810 -0.00210 OCm 0.01490 0.01030 0.01940 0.00240 0.00620 0.00190 ODo 0.01730 0.01460 0.01370 -0.00220 0.00410 0.00200 ODm 0.01650 0.01710 0.01180 -0.00200 0.00180 -0.00030