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: 1070-7d ; _database_code_amcsd 0002267 _chemical_compound_source 'Stintino, Sardinia, Italy' _chemical_formula_sum 'Na.996 Ca.01 K.004 (Al Si3) O8' _cell_length_a 8.140 _cell_length_b 12.791 _cell_length_c 7.132 _cell_angle_alpha 93.94 _cell_angle_beta 116.54 _cell_angle_gamma 88.46 _cell_volume 662.748 _exptl_crystal_density_diffrn 2.633 _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 0.27040 0.99370 0.14410 0.99600 Ca 0.27040 0.99370 0.14410 0.01000 K 0.27040 0.99370 0.14410 0.00400 Al1o 0.00890 0.16810 0.21050 0.78000 Si1o 0.00890 0.16810 0.21050 0.22000 Si1m 0.00390 0.81850 0.23480 0.92000 Al1m 0.00390 0.81850 0.23480 0.08000 Si2o 0.69210 0.11000 0.31720 0.94000 Al2o 0.69210 0.11000 0.31720 0.06000 Si2m 0.68370 0.88070 0.35850 0.92000 Al2m 0.68370 0.88070 0.35850 0.08000 OA1 0.00570 0.13310 0.97280 1.00000 OA2 0.59300 0.99550 0.28030 1.00000 OBo 0.81530 0.11090 0.19330 1.00000 OBm 0.82060 0.85010 0.25460 1.00000 OCo 0.01400 0.29920 0.27200 1.00000 OCm 0.02370 0.69200 0.22790 1.00000 ODo 0.20350 0.11020 0.38820 1.00000 ODm 0.18420 0.86820 0.43240 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 0.01610 0.08110 0.04700 -0.00530 0.00930 -0.04130 Ca 0.01610 0.08110 0.04700 -0.00530 0.00930 -0.04130 K 0.01610 0.08110 0.04700 -0.00530 0.00930 -0.04130 Al1o 0.01150 0.01070 0.00820 -0.00280 0.00490 0.00050 Si1o 0.01150 0.01070 0.00820 -0.00280 0.00490 0.00050 Si1m 0.01000 0.01030 0.00820 0.00150 0.00440 0.00150 Al1m 0.01000 0.01030 0.00820 0.00150 0.00440 0.00150 Si2o 0.01010 0.00850 0.01030 -0.00100 0.00420 0.00070 Al2o 0.01010 0.00850 0.01030 -0.00100 0.00420 0.00070 Si2m 0.00970 0.00830 0.01060 0.00010 0.00440 0.00130 Al2m 0.00970 0.00830 0.01060 0.00010 0.00440 0.00130 OA1 0.02410 0.01850 0.01320 -0.00060 0.01110 0.00250 OA2 0.01160 0.01070 0.01470 -0.00110 0.00420 0.00240 OBo 0.01710 0.02170 0.02030 -0.00540 0.01200 -0.00030 OBm 0.01730 0.02070 0.02520 0.00340 0.01340 0.00090 OCo 0.01420 0.01590 0.01720 -0.00300 0.00600 -0.00150 OCm 0.01560 0.01110 0.01760 0.00220 0.00490 0.00190 ODo 0.01650 0.01660 0.01220 0.00030 0.00400 0.00240 ODm 0.01780 0.01700 0.01220 -0.00250 0.00060 -0.00090