Enstatite
Zhang J S, Dera P, Bass J D
American Mineralogist 97 (2012) 1070-1074
A new high-pressure phase transition in natural Fe-bearing orthoenstatite
Locality: San Carlos, Arizona, USA
Note: P = 12.66 GPa
_database_code_amcsd 0019068
17.868 8.491 5.0565 90 90 90 Pbca
atom     x     y      z  occ Uiso
Mg1  .3762 .6585  .8537 .973 .007
Mg2  .3780 .4790  .3482 .853 .009
Fe1  .3762 .6585  .8537 .027 .007
Fe2  .3780 .4790  .3482 .147 .009
SiA  .2706 .3446  .0331      .006
SiB  .4726 .3382  .8052      .006
O1a  .1818 .3404  .0201      .007
O2a  .3086 .5120  .0287      .008
O3a  .3045 .2247 -.1868      .010
O1b  .5630 .3383  .8114      .008
O2b  .4333 .4886  .6826      .010
O3b  .4444 .1890  .6169      .009