Ringwoodite
Smyth J R, Holl C M, Frost D J, Jacobsen S D, Langenhorst F, McCammon C A
American Mineralogist 88 (2003) 1402-1407
Structural systematics of hydrous ringwoodite and water in Earth's interior
Sample: SZ9901
_database_code_amcsd 0003163
8.0944 8.0944 8.0944 90 90 90 *Fd3m
.125 .125 .125
atom       x      y      z  occ U(1,1) U(2,2) U(3,3)  U(1,2)  U(1,3)  U(2,3)
SiTet   .125   .125   .125      .00581 .00581 .00581       0       0       0
MgOct     .5     .5     .5 .866 .00548 .00548 .00548 -.00045 -.00045 -.00045
FeOct     .5     .5     .5 .115 .00548 .00548 .00548 -.00045 -.00045 -.00045
O     .24328 .24328 .24328      .00530 .00530 .00530 -.00026 -.00026 -.00026