Cancrinite
Pekov I V, Olysych L V, Chukanov N V, Zubkova N V,
Pushcharovsky D Yu, Van K V, Giester G, Tillmanns E
The Canadian Mineralogist 49 (2012) 1129-1150
Crystal chemistry of cancrinite-group minerals with an AB-type framework:
A review and new data. I. Chemical and structural variations
Note: Sample# mmf62633/2
Locality: Dakhuunur
_database_code_amcsd 0018875
12.613 12.613 5.124 90 90 120 P6_3
atom      x      y     z  occ   Uiso
Si1  .32770 .41029   .75      .00911
Al2  .07504 .41252 .7511  .97 .00991
Si2  .07504 .41252 .7511  .03 .00991
O1   .20285 .40426 .6582       .0156
O2    .1127 .56339 .7281       .0204
O3   .02932  .3487 .0608       .0162
O4   .31292  .3565 .0430       .0161
Na      2/3    1/3 .1380 .815  .0382
Wat    .691  .3741  .679 .333   .061
NaA  .12252 .24759 .2959  .64  .0222
CaA  .12252 .24759 .2959  .25  .0222
NaA'  .1424  .2866  .288  .06  .0222
CaA'  .1424  .2866  .288  .02  .0222
C1        0      0 .6751 .432   .044
OC1   .0578  .1186 .6751 .432   .046
C2        0      0  .912 .373   .038
OC2   .0590  .1185  .912 .373   .044