Forsterite
Artioli G, Rinaldi R, Wilson C C, Zanazzi P F
American Mineralogist 80 (1995) 197-200
High-temperature Fe-Mg cation partitioning in olivine: In-situ single-crystal
neutron diffraction study
T = 1060 C
Atomic parameters obtained from the ICSD
_database_code_amcsd 0001722
4.770 10.380 6.070 90 90 90 Pbnm
atom     x     y     z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mg1      0     0     0 .914  .0256  .0384  .0300  .0064 -.0018 -.0039
Fe1      0     0     0 .086  .0256  .0384  .0300  .0064 -.0018 -.0039
Mg2  .9939 .2785   .25 .846  .0383  .0204  .0394 -.0039      0      0
Fe2  .9939 .2785   .25 .154  .0383  .0204  .0394 -.0039      0      0
Si   .4269 .0951   .25       .0095  .0173  .0147  .0008      0      0
O1   .7640 .0926   .25       .0204  .0265  .0310  .0022      0      0
O2   .2206 .4513   .25       .0291  .0068  .0361 -.0024      0      0
O3   .2806 .1624 .0361       .0184  .0294  .0382  .0006 -.0009  .0093