Albite
Winter J K, Ghose S, Okamura F P
American Mineralogist 62 (1977) 921-931
A high-temperature study of the thermal expansion and the anisotropy of the
sodium atom in low albite
T = 500 deg C
Note: this sample of feldspar is from Tiburon, Marin County, California, USA
_database_code_amcsd 0000595
8.206 12.817 7.169 94 116.4 87.7 C-1
atom     x     y     z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Na   .2735 .9881 .1470  .0136  .0135  .0379 -.0019  .0082 -.0112
Al1o .0091 .1710 .2092  .0069  .0020  .0071 -.0006  .0031  .0001
Si1m .0046 .8198 .2375  .0063  .0018  .0065  .0005  .0030  .0005
Si2o .6952 .1114 .3192  .0057  .0015  .0083 -.0003  .0024  .0002
Si2m .6860 .8822 .3610  .0057  .0015  .0086  .0002  .0027  .0005
Oa1  .0051 .1345 .9686  .0152  .0036  .0087 -.0003  .0067  .0007
Oa2  .5995 .9983 .2830  .0071  .0016  .0140 -.0001  .0029  .0009
Obo  .8132 .1149 .1941  .0105  .0042  .0175 -.0021  .0085 -.0008
Obm  .8219 .8512 .2563  .0120  .0049  .0241  .0020  .0122  .0009
Oco  .0179 .3045 .2705  .0094  .0022  .0175 -.0012  .0048 -.0005
Ocm  .0257 .6937 .2369  .0092  .0020  .0167  .0011  .0034  .0008
Odo  .2045 .1106 .3905  .0114  .0037  .0093  .0011  .0013  .0009
Odm  .1816 .8688 .4330  .0125  .0041  .0096 -.0013  .0000 -.0005