Cancrinite Hassan I, Antao S M, Parise J B American Mineralogist 91 (2006) 1117-1124 Cancrinite: Crystal structure, phase transitions, and dehydration behaviour with temperature Locality: Dungannon Township, Bancroft, Ontario, Canada Sample: T = 207 C _database_code_amcsd 0004167 12.6111 12.6111 5.1369 90 90 120 P6_3 atom x y z occ Uiso Na1 2/3 1/3 .1288 .0396 Na2 .1247 .2508 .3008 .67 .0396 Ca2 .1247 .2508 .3008 .25 .0396 Al .0769 .4200 .7622 .0042 Si .3248 .4022 .75 .0042 C1 0 0 .725 .380 .026 C2 0 0 .939 .380 .026 O1 .2070 .4049 .6804 .0159 O2 .1073 .5568 .7377 .0159 O3 .0189 .3483 .0499 .0159 O4 .3085 .3547 .0642 .0159 OC1 .0756 .1125 .725 .380 .026 OC2 .0827 .1222 .939 .380 .026 Wat 2/3 1/3 .7059 .782 .025