Lawsonite
Meyer H W, Marion S, Sondergeld P, Carpenter M A, Knight K S, Redfern S A T,
Dove M T
American Mineralogist 86 (2001) 566-577
Displacive components of the low-temperature phase transitions in lawsonite
T = 50 K
_database_code_amcsd 0002633
5.8639 8.76442 13.099 90 90 90 P2_1cn
atom     x      y     z occ  Uiso
Ca   -.272  .0811 .2506     .0026
Al       0   .000 -.004 .97 .0013
Fe       0   .000 -.004 .03 .0013
Ala  -.006  -.002  .497 .97 .0013
Fea  -.006  -.002  .497 .03 .0013
Si   -.253   .730  .132     .0011
Sia  -.254   .727  .366     .0011
O1   -.247 -.2016 .2485     .0044
O2    .017  .1185 .1248     .0028
O2a   .013  .1255 .3819     .0028
O2b   .466  .3664 .8869     .0028
O2c   .478  .3741 .6170     .0028
O3   -.261 -.1132 .0635     .0014
O3a  -.257 -.1154 .4337     .0014
O4   -.264  .3912 .0512     .0022
O4a  -.255  .3806 .4609     .0022
O5   -.239  .3592 .2482     .0039
Dw   -.259  .3827 .1726     .0226
Dwa   .694  .4408 .2843      .032
Dh   -.256  .2792 .0288     .0217
Dha  -.243  .3225 .4017      .029