Anorthoclase
Harlow G E
American Mineralogist 67 (1982) 975-996
The anorthoclase structures: The effects of temperature and composition
Kakanui, Or = 13.8, T = 23 deg C
feldspar
Locality:  Kakanui, New Zealand
_database_code_amcsd 0000878
8.2168 12.9166 7.1270 92.754 116.357 90.239 C-1
atom     x     y     z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Al1  .0087 .1686 .2168 .25 0.0047 0.0019 0.0073 -.0005 0.0029 -.0004
Si1  .0087 .1686 .2168 .75 0.0047 0.0019 0.0073 -.0005 0.0029 -.0004
Al2  .0054 .8153 .2275 .25 0.0044 0.0018 0.0068 0.0003 0.0027 -.0002
Si2  .0054 .8153 .2275 .75 0.0044 0.0018 0.0068 0.0003 0.0027 -.0002
Al3  .6923 .1099 .3256 .25 0.0044 0.0014 0.0082 -.0002 0.0025 -.0002
Si3  .6923 .1099 .3256 .75 0.0044 0.0014 0.0082 -.0002 0.0025 -.0002
Al4  .6886 .8789 .3514 .25 0.0045 0.0015 0.0083      0 0.0028 -.0002
Si4  .6886 .8789 .3514 .75 0.0045 0.0015 0.0083 0.0000 0.0028 -.0002
Na   .2743 .0051 .1350 .85 -.0016 0.0115 0.0227 0.0005 -.0021 -.0144
K    .2743 .0051 .1350 .15 -.0016 0.0115 0.0227 0.0005 -.0021 -.0144
O1   .0045 .1369 .9881     0.0113 0.0033 0.0117 0.0000 0.0063 -.0003
O2   .5969 .9925 .2818     0.0075 0.0023 0.0118 -.0003 0.0034 0.0004
O3   .8220 .1145 .2051     0.0090 0.0036 0.0164 -.0010 0.0074 -.0004
O4   .8203 .8499 .2422     0.0081 0.0045 0.0169 0.0006 0.0072 -.0010
O5   .0188 .2940 .2724     0.0077 0.0024 0.0158 -.0006 0.0050 -.0009
O6   .0225 .6882 .2267     0.0077 0.0027 0.0107 0.0006 0.0021 0.0003
O7   .1932 .1146 .3911     0.0080 0.0029 0.0102 0.0004 0.0020 0.0004
O8   .1882 .8685 .4232     0.0076 0.0034 0.0109 -.0004 0.0011 0.0015