Bridgmanite
Ross N L, Hazen R M
Physics and Chemistry of Minerals 17 (1990) 228-237
High-pressure crystal chemistry of MgSiO3 perovskite
Sample: P = .001a GPa
_database_code_amcsd 0007483
4.7787 4.9313 6.9083 90 90 90 Pbnm
atom     x     y     z Biso
Mg   .5141 .5560   .25  .46
Si      .5     0    .5  .25
O1   .1028 .4660   .25  .32
O2   .1961 .2014 .5531  .34