Sheldrickite
Grice J D, Gault R A, Van Velthuizen J
The Canadian Mineralogist 35 (1997) 181-187
Sheldrickite, a new sodium-calcium-fluorocarbonate mineral
species from Mont Saint-Hilaire, Quebec
Locality: Mont Saint-Hilaire, Quebec, Canada
_database_code_amcsd 0005522
6.726 6.726 15.044 90 90 120 P3_2
atom      x      y      z Uiso
Na     .001   .297   .165 .023
Ca1   .6161 -.0009      0 .011
Ca2  -.0011  .6284  .0045 .008
Ca3   .3706  .3710 -.0043 .016
C1    -.433   .317   .168 .012
C2    -.568   .752   .169 .013
O1     .664   .348   .090 .016
O2     .668   .333   .238 .013
O3     .353   .273   .167 .017
O4     .321   .654  -.092 .015
O5     .336   .666  -.239 .015
O6    -.354   .921   .165 .025
OW     .203   .202  -.169 .022
F1     .997   .266   .010 .023
F2     .271   .002  -.005 .018
F3     .730   .734  -.020 .015