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