Albite Harlow G E American Mineralogist 67 (1982) 975-996 The anorthoclase structures: The effects of temperature and composition Note: Or = 22.3, T = 510 C Locality: Mt Gibele, Pantelleria Islands, Italy _database_code_amcsd 0019655 8.314 12.973 7.150 90 116.135 90 C2/m atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Na .2780 0 .1372 .710 0.0060 0.0106 0.0291 0 0.0048 0 K .2780 0 .1372 .224 0.0060 0.0106 0.0291 0 0.0048 0 Ca .2780 0 .1372 .069 0.0060 0.0106 0.0291 0 0.0048 0 Al1 .0081 .1792 .2236 .25 0.0093 0.0028 0.0092 -.0009 0.0049 -.0002 Si1 .0081 .1792 .2236 .75 0.0093 0.0028 0.0092 -.0009 0.0049 -.0002 Al2 .6967 .1164 .3422 .25 0.0087 0.0021 0.0111 -.0003 0.0047 -.0002 Si2 .6967 .1164 .3422 .75 0.0087 0.0021 0.0111 -.0003 0.0047 -.0002 O1 0 .1391 0 0.0202 0.0056 0.0129 0 0.0096 0 O2 .6084 0 .2842 0.0123 0.0028 0.0219 0 0.0051 0 O3 .8230 .1361 .2242 0.0145 0.0070 0.0282 -.0025 0.0139 -.0006 O4 .0256 .3044 .2528 0.0148 0.0035 0.0250 -.0015 0.0086 -.0007 O5 .1877 .1241 .4063 0.0153 0.0056 0.0153 0.0010 0.0035 0.0019