Feldspar
Benna P, Tribaudino M, Bruno E
American Mineralogist 84 (1999) 120-129
High-temperature in situ structural investigation on lead feldspar
Sample at T = 20 C, split Pb atom model
_database_code_amcsd 0002069
8.402 13.043 14.308 90 115.30 90 I2/c
atom       x      y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb'    .2698 -.0113 .0730 .74   .012   .040   .023  -.008   .005  -.001
Pb"    .2768  .0103 .0687 .26   .011   .080   .047   .009   .008   .004
Si1(O) .0062  .1767 .1097 .71   .009   .013   .010  -.002   .004  -.000
Al1(O) .0062  .1767 .1097 .29   .009   .013   .010  -.002   .004  -.000
Si1(z) .0033  .1794 .6156 .71   .005   .012   .007  -.002   .001  -.000
Al1(z) .0033  .1794 .6156 .29   .005   .012   .007  -.002   .001  -.000
Si2(O) .6950  .1192 .1717 .71   .004   .009   .008   .000   .000   .000
Al2(O) .6950  .1192 .1717 .29   .004   .009   .008   .000   .000   .000
Si2(z) .6883  .1147 .6739 .71   .006   .010   .012   .000   .004  -.001
Al2(z) .6883  .1147 .6739 .29   .006   .010   .012   .000   .004  -.001
OA(1)  .0041  .1342 .0012       .018   .024   .006  -.003   .005   .000
OA(2)  .5986 -.0011 .1470       .008   .010   .020  -.001   .001   .000
OB(O)  .8248  .1297 .1074       .011   .022   .024  -.003   .008   .000
OB(z)  .8144  .1311 .6170       .017   .025   .029  -.005   .013   .001
OC(O)  .0178  .3006 .1224       .012   .022   .020  -.005   .005  -.003
OC(z)  .0183  .3103 .6323       .021   .015   .018  -.009   .005  -.003
OD(O)  .1857  .1240 .1969       .013   .026   .011   .001  -.001   .002
OD(z)  .1987  .1212 .7010       .014   .021   .013  -.002   .000   .003