Laumontite Lee Y, Hriljac J A, Vogt T Physics and Chemistry of Minerals 31 (2004) 421-428 Pressure-induced migration of zeolitic water in laumontite Sample: Pleasant Valley, Connecticut, NMNH R4159; P = ambient _database_code_amcsd 0008867 14.7514 13.0827 7.5648 90 111.997 90 C2/m atom x y z occ Uiso Ca .282 .5 .770 .007 Al .1317 .3104 .7285 .007 Si1 .2412 .3798 .1644 .007 Si2 .0879 .3843 .3346 .007 O1 .259 .5 .217 .007 O2 .215 .364 .938 .007 O3 .152 .390 .561 .007 O4 .152 .338 .220 .007 O5 .339 .318 .290 .007 O6 .056 .5 .261 .007 O7 .010 .317 .710 .007 Wat2 .409 .448 .016 .5 .007 Wat5 .5 .463 .5 .5 .007 Wat8 .131 .094 .333 .76 .007