Cancrinite
Lotti P, Gatta G D, Rotiroti N, Camara F
American Mineralogist 97 (2012) 872-882
High-pressure study of a natural cancrinite
Locality: Cameroun
Note: P = 6.63 GPa
_database_code_amcsd 0019035
12.240 12.240 4.843 90 90 120 P6_3
atom     x     y     z  occ  Uiso
Si   .0841 .4123 .7392      .0126
Al   .3373 .4142 .7424      .0137
O1   .1959 .3910  .626       .022
O2   .1302 .5576  .687       .027
O3   .0572 .3721  .061       .018
O4   .3199 .3620  .073       .019
Na1    2/3   1/3  .077 .960  .065
Na2  .8762 .7527 .7758 .854  .034
Ca   .8762 .7527 .7758 .146  .034
C1       0     0   .90 .421  .031
OC1   .061  .121  .854 .421  .055
C2       0     0  .684 .459  .031
OC2   .062 .1225  .661 .459  .055
Wat   .308  .615  .141  1/3  .045