Pigeonite
Alvaro M, Nestola F, Ballaran T B, Camara F, Domeneghetti M C, Tazzoli V
American Mineralogist 95 (2010) 300-311
High-pressure phase transition of a natural pigeonite
Locality: Parana, Brazil
Note: P = 0.0001 GPa
_database_code_amcsd 0005003
9.749 8.937 5.246 90 108.49 90 P2_1/c
atom     x     y     z  occ  Uiso
FeA  .2505 .6546 .2322 .253 .0104
MgA  .2505 .6546 .2322 .747 .0104
FeB  .2558 .0177 .2294 .755 .0135
MgB  .2558 .0177 .2294 .124 .0135
CaB   .246  .039  .264 .121   .03
SiA  .0428 .3400 .2745  .99 .0086
AlA  .0428 .3400 .2745  .01 .0086
SiB  .5482 .8383 .2384  .99 .0089
AlB  .5482 .8383 .2384  .01 .0089
O1A   .867 .3374  .168       .008
O1B   .373 .8373  .133       .009
O2A   .118 .4971  .330       .012
O2B   .633 .9886  .372       .017
O3A   .100 .2599  .572       .020
O3B   .607 .7130  .484       .016