Laumontite
Fridriksson T, Bish D L, Bird D K
American Mineralogist 88 (2003) 277-287
Hydrogen-bonded water in laumontite I: X-ray powder diffraction
study of water site occupancy and structural changes in laumontite
during room-temperature isothermal hydration/dehydration
Sample: P = 16.4 mbar PH2O
_database_code_amcsd 0002979
14.74716 13.06601 7.55735 90 112.0399 90 C2/m
atom      x      y      z  occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Si1  .23817 .38214 .15752       .0047
Si2  .08328 .38332 .32681       .0038
Al   .12850 .31001 .73388       .0046
O1   .26062    .50  .2272       .0077
O2   .20980 .37876  .9291       .0077
O3   .14738 .38453  .5544       .0077
O4   .14923 .34054  .2133       .0077
O5   .33694 .31729  .2700       .0077
O6   .05190    .50  .2621       .0077
O7   .00863 .30915  .7201       .0077
Ca   .27194    .50 .75867       .0126
Wat1   .025    .17    .00 .011  .0469
Wat2 .41577 .46147  .0573  .50  .0469
Wat5    .50 .43509    .50  .50  .0557
Wat8 .11622 .11218  .3000              .0339   .091   .226   .008   .047  -.091