Uvarovite
Andrut M, Wildner M
Physics and Chemistry of Minerals 29 (2002) 595-608
The crystal chemistry of birefringent natural uvarovites. Part III. Application of the
superposition model of crystal fields with a characterization of synthetic cubic uvarovite
Sample: Uvasyn-22
_database_code_amcsd 0008734
11.9973 11.9973 11.9973 90 90 90 Ia-3d
atom      x      y      z  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca     .125      0    .25 .0056  .0040  .0063  .0063      0      0  .0009
Cr        0      0      0 .0034  .0034  .0034  .0034  .0000  .0000  .0000
Si     .375      0    .25 .0032  .0030  .0033  .0033      0      0      0
O    .03917 .04770 .65433 .0052  .0051  .0059  .0045  .0005 -.0007  .0002