Heulandite Wust T, Stolz J, Armbruster T American Mineralogist 84 (1999) 1126-1134 Partially dealuminated heulandite produced by acidic REECl3 solution: A chemical and single-crystal X-ray study Sample: DEHY378 _database_code_amcsd 0002254 17.608 17.656 7.414 90 116.42 90 C2/m atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Si1 .17810 .33296 .0907 .0160 .0414 .0210 .0006 .0081 -.0021 Si2 .28613 .41108 .4939 .0298 .0282 .0280 .0003 .0133 .0007 Si3 .29161 .18976 .2820 .0271 .0358 .0204 .0001 .0129 .0017 Si4 .06675 .20343 .4196 .0204 .0409 .0201 .0029 .0087 .0007 Si5 0 .2810 0 .0176 .0460 .0180 0 .0055 0 Al1 0 .421 0 .10 2.6 Al2 .490 0 .555 .08 3.5 Al3 .229 .5 .180 .026 2.37 NaB .481 .5 .660 .13 14.0 O1 .3022 .5 .5402 .071 .034 .048 0 .018 0 O2 .2628 .1220 .3823 .077 .069 .071 .007 .054 .026 O3 .3126 .1494 .1124 .057 .064 .034 .011 .029 .005 O4 .2285 .3996 .2485 .038 .061 .037 -.010 .009 -.010 O5 0 .1788 .5 .076 .097 .086 0 .068 0 O6 .0795 .3370 .0462 .019 .048 .051 0 .014 0 O7 .1238 .2721 .5499 .057 .067 .058 -.010 .003 -.024 O8 .0160 .2280 .1892 .053 .069 .033 -.004 .006 .013 O9 .2164 .2510 .1809 .038 .050 .047 .014 .026 .010 O10 .1220 .1297 .4358 .039 .062 .065 .016 .013 -.005 WatA1 .371 0 .37 .10 5.8 WatA3 .392 0 .31 .03 0.1 WatA4 .410 0 .12 .10 9.8 WatA6 .073 .5 .049 .18 5.2 WatA9 .479 .081 .696 .14 6.7 WatB2 .5 .5 .5 .16 15.79 WatB3 .411 .5 .083 .09 1.8 WatC2 .232 0 .049 .18 1.2 WatC3 .266 0 .10 .26 4.7 WatC33 .231 .5 -.01 .08 3.95 WatC4 .284 0 .23 .17 2.2