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 = 693 C _database_code_amcsd 0004175 12.6758 12.6758 5.1835 90 90 120 P6_3 atom x y z occ Uiso Na1 2/3 1/3 .1081 .0837 Na2 .1279 .2529 .2950 .67 .0837 Ca2 .1279 .2529 .2950 .25 .0837 Al .0724 .4121 .7498 .0149 Si .3274 .4102 .75 .0149 C1 0 0 .576 .371 .075 C2 0 0 .831 .371 .075 O1 .2025 .4087 .6733 .0246 O2 .1049 .5584 .7418 .0246 O3 .0080 .3333 .0175 .0246 O4 .3172 .3585 .0655 .0246 OC1 .0872 .1129 .576 .371 .075 OC2 .0499 .1286 .831 .371 .075