Cristobalite
Peacor D R
Zeitschrift fur Kristallographie 138 (1973) 274-298
High-temperature single-crystal study of the cristobalite inversion
Sample: T = 221 C
Locality: Ellora Caves, Hyderabad State, India
_database_code_amcsd 0010753
7.166 7.166 7.166 90 90 90 *Fd3m
.125 .125 .125
atom    x        y         z occ   B(1,1)   B(2,2)   B(3,3)  B(1,2)  B(1,3)    B(2,3)
Si   .125     .125      .125     .0162381 .0162381 .0162381       0       0         0
O       0 .0443541 -.0443541 1/6 .0146814 .0181157 .0181157 .001317 .001317 -.0010763