Feldspar
Benna P, Tribaudino M, Bruno E
American Mineralogist 81 (1996) 1337-1343
The structure of ordered and disordered lead feldspar (PbAl2Si2O8)
Sample: disordered
_database_code_amcsd 0001839
8.428 13.054 7.174 90 115.32 90 C2/m
atom      x     y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb    .2749 .0213 .1406  .5   .022   .052   .043   .016   .008   .004
Si1   .0038 .1793 .2258  .5   .018   .013   .016   .005   .009  -.001
Al1   .0038 .1793 .2258  .5   .018   .013   .016   .005   .009  -.001
Si2   .6932 .1170 .3455  .5   .010   .006   .008   .000   .003   .000
Al2   .6932 .1170 .3455  .5   .010   .006   .008   .000   .003   .000
OA(l)     0 .1353     0       .027   .019   .015   .000   .007   .000
OA(2) .6033     0 .2956       .019   .012   .031   .000   .010   .000
OB    .8175 .1311 .2214       .028   .025   .032   .000   .017   .001
OC    .0181 .3066 .2539       .025   .019   .029  -.006   .014   .002
OD    .1905 .1249 .4010       .025   .028   .016   .001   .001  -.001