Coesite
Kirfe A, Will G, Arndt J
Zeitschrift fur Kristallographie 149 (1979) 315-326
A new phase of coesite SiO2
Note: this is a synthetic, twinned crystal of a typical coesite,
it is not really a new phase
_database_code_amcsd 0010809
7.148 12.334 7.112 90 120.30 90 P2_1/a
atom     x     y      z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Si1  .3224 .3585  .3910  .0066  .0035  .0070 -.0009  .0032 -.0014
Si2  .6864 .3582  .1106  .0049  .0016  .0066 -.0001  .0040  .0009
Si3  .7874 .4086  .7432  .0096  .0042  .0105  .0004  .0079  .0006
Si4  .2190 .4074  .7562  .0027  .0014  .0039  .0004  .0064  .0001
O1   .2498 .2515  .2486  .0131  .0030  .0108 -.0015  .0063 -.0028
O2   .0039 .3662  .7520  .0066  .0069  .0124 -.0025  .0061 -.0023
O3   .2351 .3548  .5609  .0116  .0115  .0063 -.0016  .0058 -.0053
O4   .5791 .3726  .5144  .0067  .0090  .0127 -.0024  .0058 -.0045
O5   .7865 .4648  .2681  .0096  .0020  .0082  .0000  .0052 -.0011
O6   .2083 .4581  .2334  .0164  .0026  .0155  .0015  .0063  .0000
O7   .4275 .3738 -.0184  .0066  .0114  .0092  .0000  .0014  .0026
O8   .7700 .3530 -.0597  .0188  .0077  .0179  .0016  .0153  .0010