Laumontite Stahl K, Artioli G, Hanson J C Physics and Chemistry of Minerals 23 (1996) 328-336 The dehydration process in the zeolite laumontite: a real-time synchrotron X-ray powder diffraction study Sample: T = 500 K _database_code_amcsd 0007949 14.5601 13.1629 7.4291 90 110.582 90 C2/m atom x y z occ Biso Si1 .2408 .3834 .1509 1.6 Si2 .0781 .3862 .3161 1.6 Al .1336 .3082 .7318 1.6 O1 .2626 .5 .2255 1.8 O2 .2178 .3793 .9271 1.8 O3 .1447 .3784 .5483 1.8 O4 .1438 .3468 .1892 1.8 O5 .3353 .3169 .2638 1.8 O6 .0431 .5 .2646 1.8 O7 .0118 .3113 .7218 1.8 Ca .2645 .5 .7261 2.6 OWat2 .4132 .4837 -.1441 .23 4.7 OWat5 .5 .3853 .5 .35 4.7 OWat8 .1047 .1237 .2688 .86 4.7 H21 .4614 .4292 -.1885 .15 5.7 H22 .4604 .4373 -.0636 .08 5.7 H5 .4529 .4153 .3872 .17 5.7 H82 .1249 .1658 .3791 .86 5.7 H83 .0915 .1831 .1574 .86 5.7