Lawsonite
Sondergeld P, Schranz W, Troster A, Armbruster T, Giester G, Kityk A, Carpenter M A
American Mineralogist 90 (2005) 448-456
Ordering and elasticity associated with low-temperature phase transitions in lawsonite
Sample at T = 215 K
_database_code_amcsd 0003737
5.8515 8.7768 13.1107 90 90 90 *Pmcn
.25 .25 0
atom      x      y      z   Uiso
Ca        0 .33243 .25072 .00745
Al      .25    .25      0 .00413
Ala     .25    .25     .5 .00383
Si        0 .98045 .13204 .00417
Sia       0 .97888 .36585 .00416
O1        0 .04971 .24903 .00699
O2   .27482 .37460 .11933 .00705
O2a  .27177 .37994 .38419 .00608
O3        0 .13736 .06351 .00562
O3a       0 .13592 .43419 .00576
O4        0 .64019 .05069 .00593
O4a       0 .63476 .45762 .00739
O5        0 .60880 .24857 .01533
Hw        0  .6420  .1849   .037
Hwa       0   .681  .2870   .046
Hh        0  .5395  .0386   .047
Hha       0  .5638  .4245   .104