Vlasovite
Sokolova E, Hawthorne F C, Ball N A, Mitchell R H, Della Ventura G
The Canadian Mineralogist 44 (2006) 1349-1356
Vlasovite, Na2Zr(Si4O11), from the Kipawa alkaline complex, Quebec, Canada:
Crystal-structure refinement and infrared spectroscopy
Locality: Kipawa alkaline complex, Quebec, Canada
_database_code_amcsd 0006128
11.0390 10.0980 8.5677 90 100.313 90 C2/c
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3)  U(2,3)
Na1       0 .07593    .75      .0304  .0406  .0229  .0308      0  .0151       0
Na2A      0  .3985    .75 .82  .0448  .0265  .0312   .068      0 -.0140       0
Na2B  .9851  .4308   .834 .09  .0448  .0265  .0312   .068      0 -.0140       0
Zr      .25    .25      0     .01173 .01314 .01159 .01088 .00069 .00323 -.00015
Si1  .26448 .07231 .63875     .01306  .0143  .0123  .0126 .00067 .00227 -.00110
Si2  .04996 .21676 .42721     .01386  .0120  .0161  .0135 .00001 .00238 -.00019
O1        0 .16001    .25      .0207  .0265  .0209  .0133      0 -.0001       0
O2   .14362 .10274 .50471      .0291  .0260  .0284  .0281  .0125 -.0083  -.0041
O3   .11547 .35857  .4155      .0291  .0286  .0220  .0411 -.0104  .0182  -.0070
O4   .05651 .23057 .97038      .0200  .0156  .0249  .0206  .0001  .0065   .0016
O5   .23987 .13443 .80125      .0244  .0384  .0192  .0173  .0006  .0091  -.0052
O6   .28874 .08336 .14471      .0179  .0225  .0128  .0180 -.0014  .0022   .0019