Erionite-K Staples L W, Gard J A Mineralogical Magazine 32 (1959) 261-281 The fibrous zeolite erionite; its occurrence, unit cell, and structure Note: K atom was not located Locality: Durkee opal mine, Swayze Creek, Baker County, Oregon, USA _database_code_amcsd 0014439 13.26 13.26 15.12 90 90 120 P6_3/mmc atom x y z occ Al1 0 .237 .106 .25 Si1 0 .237 .106 .75 Al2 .088 .421 .25 .25 Si2 .088 .421 .25 .75 O1 .017 .350 .162 O2 .106 .212 .128 O3 .123 .246 -.133 O4 0 .262 0 O5 .217 .434 .25 O6 .450 .900 .25