Leucite
Palmer D C, Dove M T, Ibberson R M, Powell B M
American Mineralogist 82 (1997) 16-29
Structural behavior, crystal chemistry and phase transitions in substituted
leucites: High-resolution neutron powder diffraction studies
Sample: Expt. no. 2830, T = 298 K, RbAlSi2O6
_database_code_amcsd 0001852
13.29180 13.29180 13.74118 90 90 90 *I4_1/a
0 .25 .125
atom     x     y     z occ  B(1,1)  B(2,2)  B(3,3)   B(1,2)   B(1,3)   B(2,3)
Rb   .3654 .3636 .1221     .004882 .003736 .006527 -.000311 -.000370 -.000424
Si1  .0643 .3926 .1656 2/3 .004429 .002986 .004859  .000665  .000739 -.000739
Si2  .1684 .6060 .1283 2/3 .004740 .002759 .004277 -.001245  .000110  .000274
Si3  .3911 .6447 .0864 2/3 .003750 .002519 .002396 -.000311  .000616  .000068
Al1  .0643 .3926 .1656 1/3 .004429 .002986 .004859  .000665  .000739 -.000739
Al2  .1684 .6060 .1283 1/3 .004740 .002759 .004277 -.001245  .000110  .000274
Al3  .3911 .6447 .0864 1/3 .003750 .002519 .002396 -.000311  .000616  .000068
O1   .1324 .3054 .1099     .003736 .003778 .002489  .000750 -.000068  .000411
O2   .1039 .5015 .1265     .002519 .002858 .004051  .000071  .000520  .000287
O3   .1398 .6729 .2260     .002307 .003495 .002807  .000028 -.000246  .000671
O4   .1317 .6761 .0338     .001656 .001316 .002608 -.000552  .000014 -.000356
O5   .2899 .5808 .1237     .000580 .000722 .001072 -.000283  .000548  .000329
O6   .4822 .6174 .1638     .000934 .001075 .000821  .000127  .000014 -.001013