Erionite-Ca Gualtieri A, Artioli G, Passaglia E, Bigi S, Viani A, Hanson J C American Mineralogist 83 (1998) 590-606 Crystal structure-crystal chemistry relationships in the zeolites erionite and offretite Sample from Lady Hill _database_code_amcsd 0002001 13.339 13.339 15.112 90 90 120 P6_3/mmc atom x y z occ Uiso Si1 .0012 .2308 .1058 .939 .027 Al1 .0012 .2308 .1058 .061 .027 Si2 .0871 .4190 .25 .512 .015 Al2 .0871 .4190 .25 .488 .015 Ca1 1/3 2/3 .118 .40 .091 Ca2 1/3 2/3 .942 .47 .082 Ca3 2/3 1/3 .221 .07 .041 Ca4 .5 0 0 .04 .091 K 0 0 .25 .051 O1 .0295 .3443 .1584 .044 O2 .0991 .1982 .1285 .052 O3 .1266 .2532 .6284 .044 O4 .2645 0 0 .051 O5 .2314 .4628 .25 .033 O6 .1105 .5552 .25 .035 Wat1 .2705 .5410 -.060 .39 .067 Wat1b .2439 .4878 .0154 .46 .067 Wat2 .2050 .4100 .75 .31 .048 Wat2b .254 .508 .691 .29 .048 Wat3 .4414 .8828 .9141 .62 .047 Wat3b .470 -.060 .027 .38 .047 Wat3c .4205 .8410 .6586 .18 .047