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 Tunguska
_database_code_amcsd 0002003
13.304 13.304 15.078 90 90 120 P6_3/mmc
atom      x     y     z  occ Uiso
Si1   .0030 .2332 .1057 .823 .036
Al1   .0030 .2332 .1057 .177 .036
Si2   .0945 .4227   .25 .645 .028
Al2   .0945 .4227   .25 .355 .028
Ca1     1/3   2/3  .113  .16 .026
Ca2     1/3   2/3 .9263  .55 .072
Ca3     2/3   1/3  .219  .13 .033
Ca4      .5     0     0  .04 .095
K         0     0   .25  .85 .039
O1    .0223 .3453 .6616      .026
O2    .0952 .1904 .1255      .042
O3    .1259 .2518 .6383      .058
O4    .2661     0     0      .040
O5    .2284 .4568   .25      .051
O6    .0722 .5361   .25      .061
Wat1  .2476 .4952  .020  .39 .128
Wat2   .242  .484   .75  .24 .149
Wat2b  .238  .476  .678  .46 .149
Wat3  .4337 .8674  .882  .74 .128
Wat3b  .534  .069  .004  .33 .128
Wat3c  .421  .842  .711  .19 .128