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 = 8.835 GPa _database_code_amcsd 0008495 9.2007 8.2656 5.0240 90 108.910 90 P2_1/c atom x y z Biso LiM2 .2587 .015 .224 2.3 AlM1 .2505 .6565 .2156 .31 SiA .0468 .3441 .2821 .42 SiB .5533 .8413 .2302 .39 O1A .8590 .3327 .1741 .36 O1B .3659 .8307 .1081 .37 O2A .1168 .5169 .2844 .82 O2B .6247 .0074 .3662 .33 O3A .1128 .2857 .6091 .27 O3B .6136 .6999 .4667 .36