Natrolite Alberti A, Cruciani G, Dauru I European Journal of Mineralogy 7 (1995) 501-508 Order-disorder in natrolite-group minerals _database_code_amcsd 0006590 18.347 18.561 6.587 90 90 90 Fdd2 atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Na .2208 .0301 .6209 1.22 .0162 .0166 .0207 -.0021 -.0027 -.0023 Si1 0 0 0 .765 .61 .0088 .0089 .0055 0 0 0 Al1 0 0 0 .235 .61 .0088 .0089 .0055 0 0 0 Si2 .1542 .2113 .6251 .815 .52 .0060 .0078 .0070 -.0005 .0000 -.0006 Al2 .1542 .2113 .6251 .185 .52 .0060 .0078 .0070 -.0005 .0000 -.0006 Al .0378 .0940 .6179 .661 .54 .0084 .0063 .0071 -.0003 -.0004 -.0006 Si .0378 .0940 .6179 .339 .54 .0084 .0063 .0071 -.0003 -.0004 -.0006 O1 .0229 .0693 .8640 1.28 .026 .012 .013 -.002 .001 -.000 O2 .0704 .1804 .6169 .79 .009 .009 .013 -.001 -.001 .000 O3 .0981 .0362 .5062 1.13 .012 .012 .018 .002 .001 -.004 O4 .2088 .1529 .7306 1.12 .014 .012 .015 .001 -.003 .001 O5 .1797 .2274 .3920 1.37 .014 .025 .012 -.002 .003 .000 OW .0570 .1910 .1180 2.02 .025 .024 .025 .002 -.001 -.001 H1 .058 .156 .078 1.7 H2 .095 .190 .191 .7