Eucryptite
Daniels P, Fyfe C A
American Mineralogist 86 (2001) 279-283
Al, Si order in the crystal structure of alpha-eucryptite (LiAlSiO4)
_database_code_amcsd 0002630
13.532 13.532 9.044 90 90 120 R3
atom       x       y       z U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
Li1   -.0172  -.8111  -.7486  .0176  .0197  .0132  .0088   .0012   .0027
Li2    .0208   .8117   .7535  .0163  .0148  .0150  .0069  -.0011  -.0013
Si1   .53003  .87978  .74976  .0098  .0100  .0092 .00512 -.00023 -.00025
Al1  -.53033 -.88160 -.74912  .0105  .0103  .0091 .00537 -.00011 -.00008
Si2   .87557  .34416  .91628 .01036  .0095  .0091 .00498 -.00031  .00011
Al2  -.87508 -.34475 -.91580  .0106  .0098  .0094 .00519 -.00023 -.00011
O1   -.75287 -.20991 -.89041  .0118  .0117  .0107  .0035  -.0014  -.0011
O2    .76554  .21616  .89841  .0120  .0110  .0111  .0033  -.0016  -.0009
O3   -.73280 -.19912 -.59329  .0129  .0120  .0093  .0047  -.0001   .0000
O4    .73246  .19928  .57644  .0126  .0117  .0087  .0044   .0003  -.0002
O5   -.10448 -.88798 -.93692  .0118  .0113  .0109  .0035   .0010   .0013
O6    .09633  .88060  .94630  .0126  .0112  .0108  .0036   .0016   .0008
O7   -.66426 -.00862 -.74899  .0108  .0100  .0139  .0048  -.0001   .0000
O8    .65458 -.00374  .74982  .0106  .0099  .0137  .0044   .0005   .0003