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# 11/1
Locality: Khibiny
_database_code_amcsd 0018873
12.618 12.618 5.116 90 90 120 P6_3
atom      x      y      z  occ   Uiso
Si1  .32841 .41111    .75      .00699
Al2  .07525 .41236 .75094  .93 .00723
Si2  .07525 .41236 .75094  .07 .00723
O1   .20317 .40479 .65897      .01388
O2   .11541 .56393  .7249      .01830
O3   .03040 .35195 .06234      .01469
O4   .31531 .35986 .04496      .01472
Na      2/3    1/3  .1323       .0288
Wat   .6157  .3146  .6852 .333  .0534
NaA'  .1248  .2525  .2996  .55  .0209
CaA'  .1248  .2525  .2996  .05  .0209
NaA   .1190  .2411   .276  .35  .0263
CaA   .1190  .2411   .276  .04  .0263
C1        0      0   .660 .225  .0177
OC1   .0577  .1187   .660 .225  .0163
C2        0      0  .9029 .247  .0198
OC2   .0577  .1185  .9029 .247  .0262
C3        0      0   .581 .092   .007
OC3   .0566  .1145   .581 .092   .016
C4        0      0  .7581 .172  .0108
OC4   .0567  .1186  .7581 .172  .0176