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 = 496 C _database_code_amcsd 0004170 12.6538 12.6538 5.1736 90 90 120 P6_3 atom x y z occ Uiso Na1 2/3 1/3 .1126 .0570 Na2 .1302 .2512 .2982 .67 .0570 Ca2 .1302 .2512 .2982 .25 .0570 Al .0755 .4041 .7511 .0082 Si .3387 .4165 .75 .0082 C1 0 0 .691 .380 .036 C2 0 0 .913 .380 .036 O1 .2114 .4084 .6774 .0234 O2 .1052 .5578 .7412 .0234 O3 .0128 .3360 .0259 .0234 O4 .3213 .3596 .0642 .0234 OC1 .0374 .1154 .691 .380 .036 OC2 .0253 .1225 .913 .380 .036 Wat 2/3 1/3 .7983 .288 .025