Tridymite
Graetsch H, Topalovic-Dierdorf I
European Journal of Mineralogy 8 (1996) 103-113
29Si MAS NMR spectrum and superstructure of modulated tridymite L3-To(MX-1)
Sample: average crystal structure
Locality: synthetic
_database_code_amcsd 0006616
5.007 8.6004 8.2169 90 91.512 90 Cc
atom     x     y     z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Si1  .0764 .3073 .2108 .052   .043   .033   .080   .004   .031   .006
Si2  .0773 .3592 .8352 .052   .042   .034   .082   .004   .031   .008
O1   .2885 .7530 .2534 .044   .039   .047   .046   .010   .001  -.003
O2   .1440 .4647 .3082 .085   .048   .030   .176  -.014  -.017   .009
O3   .2884 .1797 .2703 .138   .032   .032   .350   .008  -.002   .008
O4   .5826 .1668 .5198 .188   .266   .216   .090  -.023   .132  -.014