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 = 268 K _database_code_amcsd 0002638 5.85539 8.79152 13.1326 90 90 90 Pmcn atom x y z occ Uiso Ca -.25 .0803 .2471 .0092 Al 0 0 0 .97 .0040 Fe 0 0 0 .03 .0040 Ala 0 0 .5 .97 .0040 Fea 0 0 .5 .03 .0040 Si -.25 .731 .1312 .0037 Sia -.25 .729 .3664 .0037 O1 -.25 -.2034 .2510 .0068 O2 .021 .1270 .1179 .0050 O2a .024 .1289 .3842 .0050 O3 -.25 -.1135 .0661 .0034 O3a -.25 -.1116 .4333 .0034 O4 -.25 .3936 .0516 .0076 O4a -.25 .3868 .4577 .0076 O5 -.25 .3599 .249 .022 Dw -.25 .407 .1805 .057 Dwa -.25 .420 .3015 .064 Dd -.25 .2781 .0383 .036 Dda -.25 .307 .4178 .052