Forsterite
Hazen R M
American Mineralogist 61 (1976) 1280-1293
Effects of temperature and pressure on the crystal structure of forsterite
T = 675 C P = 1 atm
olivine
_database_code_amcsd 0000548
4.778 10.29 6.017 90 90 90 Pbnm
atom     x     y     z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Si   .4257 .0941   .25  .0038  .0018  .0059  .0003      0      0
Mg1      0     0     0  .0107  .0039  .0068 -.0002 -.0010 -.0012
Mg2  .9919 .2785   .25  .0124  .0027  .0091  .0002      0      0
O1   .7637 .0906   .25  .0098  .0028  .0088  .0009      0      0
O2   .2178 .4497   .25  .0100  .0024  .0078 -.0001      0      0
O3   .2822 .1619 .0352  .0112  .0030  .0080 -.0005 -.0005  .0012