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 #AU87
Locality: synthetic
_database_code_amcsd 0018938
5.3510 13.2073 5.8443 90 124.17 90 P2_1/m
atom     x     y     z occ
Ca    .343   .75  .679 .59
Sr    .343   .75 .6772 .41
Al1     .5     0     0
Al2     .5     0    .5
Si    .964 .1319  .987
O1    .934   .75  .942
O2    .762 .1155  .656
O3    .774 .3894  .120
O4    .280 .0688  .137
OH5   .280 .0544  .638
Wat6  .762   .75  .340