Cancrisilite
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# u1631
Locality: Lovozero
_database_code_amcsd 0018867
12.584 12.584 5.101 90 90 120 P6_3mc
atom       x       y      z  occ   Uiso
Si   .079337 .412136    .75  .62 .00796
Al   .079337 .412136    .75  .38 .00796
O1    .20219 -.20219 .66167      .01749
O2    .44218 -.44218 .72436      .02156
O3    .03638  .35694 .05218      .01725
Na1      1/3     2/3  .6341 .822  .0348
Wat      1/3     2/3   .140  .22   .059
Wat'   .3811   .6905  .1913  .26  .0577
Na2'  .12384 -.12384  .3022  .49  .0248
Na2    .1219  -.1219   .263  .47  .0259
C1         0       0  .6524 .278  .0253
OC1   .05911   .1182  .6524 .278  .0335
C2         0       0  .9146 .274  .0248
OC2   .05926   .1185  .9146 .274  .0311
C3         0       0  .7820 .152  .0128
OC3    .0594   .1189  .7820 .152  .0162