Cancrinite Fechtelkord M, Stief F, Buhl J-C American Mineralogist 86 (2001) 165-175 Sodium cation dynamics in nitrate cancrinite: A low and high temperature Na and H MAS NMR study and high temperature Rietveld structure refinement Sample: T = 673 K _database_code_amcsd 0002624 12.7261 12.7261 5.2214 90 90 120 P6_3 atom x y z occ Uiso Na1 1/3 2/3 .654 .93 .052 Na2 .137 .2741 .287 .98 .066 Si1 .080 .413 .75 .028 Al1 .332 .411 .756 .028 O1 .200 .406 .684 .030 O2 .115 .557 .737 .030 O3 .023 .349 .035 .030 O4 .323 .359 .060 .030 N1 0 0 .56 .41 .03 N2 0 0 .78 .41 .03 ON1 .980 .083 .48 .41 .07 ON2 .890 .940 .71 .41 .07 OH1 1/3 2/3 .68 .08 .01