Coesite
Angel R J, Shaw C S J, Gibbs G V
Physics and Chemistry of Minerals 30 (2003) 167-176
Compression mechanisms of coesite
Sample: X1P12, P = 6.16 GPa
_database_code_amcsd 0008753
6.9520 12.1986 7.0942 90 120.820 90 C2/c
atom      x      y      z Biso B(1,1) B(2,2) B(3,3)  B(1,2) B(1,3)  B(2,3)
Si1  .13588 .11051 .06934  .53 .00362 .00088  .0038 -.00021 .00195 -.00026
Si2  .50905 .15687 .54548  .52 .00402 .00092  .0032 -.00010 .00193 -.00008
O1        0      0      0  .88  .0065  .0009  .0076  -.0008  .0034  -.0004
O2       .5  .1074    .75  .78  .0072  .0014  .0035       0  .0030       0
O3    .2499  .1314  .9245  .75  .0049  .0015  .0054  -.0004  .0033  -.0002
O4    .3205  .1006  .3247  .86  .0068  .0014  .0041  -.0004  .0020  -.0004
O5    .0291  .2117  .4706  .73  .0059  .0009  .0065  -.0002  .0038   .0000