Spodumene-II
Li C T, Peacor D R
Zeitschrift fur Kristallographie 126 (1968) 46-65
The crystal structure LiAlSi2O6-II ("beta spodumene")
Locality: synthetic
Note, y coordinate of Si1 altered according to Clarke and Spink (1969)
_database_code_amcsd 0010656
7.541 7.541 9.156 90 90 90 P4_32_12
atom     x     y     z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Li   .0705 .1953 .5011  .5 4.26  .0195  .0245  .0083 -.0130  .0066 -.0091
Al1  .3323 .1221 .2384 1/3  .19  .0012  .0013  .0000  .0001  .0002 -.0003
Si1  .3323 .1221 .2384 2/3  .19  .0012  .0013  .0000  .0001  .0002 -.0003
Al2  .4178 .4178     0 1/3  .22  .0011  .0011  .0005 -.0003 -.0005  .0005
Si2  .4178 .4178     0 2/3  .22  .0011  .0011  .0005 -.0003 -.0005  .0005
O1   .4432 .1207 .3931     1.88  .0102  .0091  .0037 -.0022 -.0044  .0008
O2   .1245 .1159 .2994     1.07  .0031  .0080  .0020  .0006  .0000 -.0006
O3   .3637 .3046 .1459     2.34  .0129  .0080  .0068  .0006  .0033  .0033