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 = 6.16 GPa
_database_code_amcsd 0019034
12.266 12.266 4.864 90 90 120 P6_3
atom     x     y     z  occ  Uiso
Si   .0842 .4119 .7387      .0130
Al   .3375 .4139 .7405      .0125
O1   .1960 .3931  .627       .020
O2   .1267 .5590  .686       .027
O3   .0578 .3721  .055       .014
O4   .3193 .3613  .070       .017
Na1    2/3   1/3  .084 .960  .047
Na2  .8761 .7530 .7774 .854  .031
Ca   .8761 .7530 .7774 .146  .031
C1       0     0   .92 .421  .016
OC1   .060  .119  .853 .421  .045
C2       0     0  .676 .459  .016
OC2   .062 .1228  .666 .459  .045
Wat   .311  .614  .146  1/3  .048