Spodumene Arlt T, Angel R J Physics and Chemistry of Minerals 27 (2000) 719-731 Displacive phase transitions in C-centred clinopyroxenes: spodumene, LiScSi2O6 and ZnSiO3 Sample: P = 3.342 GPa _database_code_amcsd 0008494 9.3114 8.3614 5.1100 90 109.274 90 P2_1/c atom x y z Biso LiM2 .2563 .016 .230 2.2 AlM1 .2497 .6561 .2234 .32 SiA .0466 .3440 .2738 .32 SiB .5505 .8426 .2364 .35 O1A .8616 .3316 .1661 .36 O1B .3628 .8297 .1126 .32 O2A .1175 .5175 .2875 .53 O2B .6215 .0084 .3520 .58 O3A .1086 .2813 .5914 .34 O3B .6102 .7126 .4845 .58