Spodumene-II
Clarke P T, Spink J M
Zeitschrift fur Kristallographie 130 (1969) 420-426
The crystal structure of beta spodumene, LiAlSi2O6-II
Locality: synthetic
_database_code_amcsd 0010702
7.534 7.543 9.158 90 90 90 P4_32_12
atom     x     y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Li   .0826 .1982 .4944  .5  .0555  .0810  .0227 -.0238 -.0059 -.0063
Al1  .3322 .1223 .2388 1/3  .0127  .0124  .0099 -.0004  .0003  .0001
Si1  .3322 .1223 .2388 2/3  .0127  .0124  .0099 -.0004  .0003  .0001
Al2  .4174 .4174     0 1/3  .0111  .0111  .0125 -.0007  .0003 -.0003
Si2  .4174 .4174     0 2/3  .0111  .0111  .0125 -.0007  .0003 -.0003
O1   .4426 .1216 .3947      .0322  .0343  .0266 -.0056 -.0162  .0014
O2   .1243 .1153 .3001      .0153  .0308  .0219  .0011 -.0005 -.0022
O3   .3654 .3048 .1468      .0483  .0329  .0339 -.0035  .0087  .0145