Soddyite
Demartin F, Gramaccioli C M, Pilati T
Acta Crystallographica C48 (1992) 1-4
The importance of accurate crystal structure determination
of uranium minerals. II. Soddyite (UO2)2(SiO4)*2H2O
Locality: Democratic Republic of the Congo
_database_code_amcsd 0010268
8.334 11.212 18.668 90 90 90 *Fddd
.125 .125 .125
atom     x     y      z Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
U     .375  .375 .04413 .814  .0107  .0100  .0102 -.0039      0      0
Si    .125  .125   .125  .86   .014   .007   .011      0      0      0
O1   .5522 .2862  .0454 1.47   .015   .021   .020   .003   .000   .002
O2   .2243 .2063  .0677 1.27   .018   .015   .016  -.008  -.001   .001
Ow3   .375  .375  .1730  2.3   .030   .039   .018  -.009      0      0
H      .30  .394   .193  4.0