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: 1050-3d ; _database_code_amcsd 0002265 _chemical_compound_source 'Stintino, Sardinia, Italy' _chemical_formula_sum 'Na.996 Ca.01 K.004 (Al Si3) O8' _cell_length_a 8.141 _cell_length_b 12.795 _cell_length_c 7.145 _cell_angle_alpha 94.04 _cell_angle_beta 116.56 _cell_angle_gamma 87.98 _cell_volume 664.049 _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 0.26910 0.98980 0.14600 0.99600 Ca 0.26910 0.98980 0.14600 0.01000 K 0.26910 0.98980 0.14600 0.00400 Al1o 0.00880 0.16900 0.20900 0.91000 Si1o 0.00880 0.16900 0.20900 0.09000 Si1m 0.00390 0.82000 0.23660 0.96000 Al1m 0.00390 0.82000 0.23660 0.04000 Si2o 0.69210 0.11040 0.31590 0.98000 Al2o 0.69210 0.11040 0.31590 0.02000 Si2m 0.68250 0.88160 0.36000 0.97000 Al2m 0.68250 0.88160 0.36000 0.03000 OA1 0.00480 0.13200 0.96810 1.00000 OA2 0.59350 0.99710 0.28070 1.00000 OBo 0.81340 0.11080 0.19110 1.00000 OBm 0.82050 0.85130 0.25730 1.00000 OCo 0.01420 0.30170 0.27050 1.00000 OCm 0.02400 0.69330 0.22960 1.00000 ODo 0.20590 0.10940 0.38850 1.00000 ODm 0.18330 0.86840 0.43450 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 0.01500 0.05920 0.03550 -0.00450 0.00870 -0.02620 Ca 0.01500 0.05920 0.03550 -0.00450 0.00870 -0.02620 K 0.01500 0.05920 0.03550 -0.00450 0.00870 -0.02620 Al1o 0.01010 0.00950 0.00820 -0.00150 0.00450 0.00080 Si1o 0.01010 0.00950 0.00820 -0.00150 0.00450 0.00080 Si1m 0.00900 0.00880 0.00730 0.00090 0.00410 0.00140 Al1m 0.00900 0.00880 0.00730 0.00090 0.00410 0.00140 Si2o 0.00890 0.00820 0.00940 -0.00020 0.00380 0.00100 Al2o 0.00890 0.00820 0.00940 -0.00020 0.00380 0.00100 Si2m 0.00860 0.00820 0.00980 0.00060 0.00420 0.00160 Al2m 0.00860 0.00820 0.00980 0.00060 0.00420 0.00160 OA1 0.02060 0.01560 0.00920 -0.00020 0.00790 0.00120 OA2 0.01010 0.00900 0.01380 0.00000 0.00450 0.00270 OBo 0.01440 0.01680 0.01950 -0.00390 0.01120 -0.00050 OBm 0.01580 0.01890 0.02460 0.00430 0.01350 0.00140 OCo 0.01280 0.01120 0.01670 -0.00240 0.00620 -0.00080 OCm 0.01260 0.01010 0.01500 0.00260 0.00370 0.00180 ODo 0.01470 0.01570 0.01010 0.00070 0.00280 0.00180 ODm 0.01620 0.01590 0.01130 -0.00250 0.00100 -0.00140