Lawsonite
Liebscher A, Dorsam G, Franz G, Wunder B, Gottschalk M
American Mineralogist 95 (2010) 724-735
Crystal chemistry of synthetic lawsonite solid-solution series CaAl2
[(OH)2/(Si2O7)](H2O)-SrAl2[(OH)2/(Si2O7)](H2O) and the Cmcm-P2_1/m phase transition
Note: Run #AU82
Locality: synthetic
_database_code_amcsd 0018939
5.3640 13.2175 5.8452 90 124.25 90 P2_1/m
atom     x     y     z  occ
Ca   .3428   .75 .6802 .507
Sr   .3428   .75 .6802 .493
Al1     .5     0     0
Al2     .5     0    .5
Si   .9653 .1315 .9880
O1    .937   .75  .939
O2    .761 .1149  .658
O3    .776 .3914  .118
O4    .285 .0686  .141
OH5   .282 .0542  .637
Wat6  .758   .75  .329