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 = 511 C _database_code_amcsd 0004171 12.6508 12.6508 5.1707 90 90 120 P6_3 atom x y z occ Uiso Na1 2/3 1/3 .1124 .0567 Na2 .1302 .2514 .2981 .67 .0567 Ca2 .1302 .2514 .2981 .25 .0567 Al .0758 .4045 .7525 .0087 Si .3385 .4162 .75 .0087 C1 0 0 .691 .380 .034 C2 0 0 .914 .380 .034 O1 .2113 .4088 .6770 .0225 O2 .1055 .5585 .7423 .0225 O3 .0122 .3352 .0259 .0225 O4 .3218 .3606 .0662 .0225 OC1 .0369 .1153 .691 .380 .034 OC2 .0242 .1237 .914 .380 .034 Wat 2/3 1/3 .807 .254 .025