Willhendersonite Fischer R X, Kahlenberg V, Lengauer C L, Tillmanns E American Mineralogist 93 (2008) 1317-1325 Thermal behavior and structural transformation in the chabazite-type zeolite willhendersonite, KCaAl3Si3O12*5H2O Locality: Mayen, Eifel district, Germany Note: T = 373K _database_code_amcsd 0004628 9.205 9.231 9.442 92.550 93.086 90.519 P-1 atom x y z occ Uiso K1 .4781 .974 .4832 .427 .064 K2 .4928 .5576 .140 .096 K3 .491 .546 .047 .11 .11 Ca .2048 .2078 .2120 .987 .0201 Al12a .3463 .0965 .8525 .0152 Al12b .8924 .3109 .0921 .0156 Al12c .0895 .8470 .3430 .0153 Si11a .3117 .8999 .1110 .0154 Si11b .1114 .3484 .8565 .0149 Si11c .8509 .1025 .3398 .0147 O11 .7517 .2362 .9842 .0234 O12 .6924 .0555 .2649 .0203 O13 .9738 .3151 .7442 .0193 O21 .1578 .5169 .8502 .0228 O22 .4725 .8616 .1723 .0239 O23 .8245 .1866 .4919 .0211 O31 .2526 .2543 .8196 .0193 O32 .9417 .2056 .2386 .0203 O33 .7884 .0559 .7562 .0217 O41 .0633 .3110 .0162 .0214 O42 .3122 .0509 .0267 .0227 O43 .0614 .0450 .6340 .0201 Wat1 .2281 .4660 .2773 .054 Wat2 .4675 .2578 .2507 .055 Wat3 .2398 .2094 .4727 .048 Wat4 .2957 .5382 .5874 .82 .091