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 = 960 C
Atomic parameters obtained from the ICSD
_database_code_amcsd 0001720
4.769 10.33 6.037 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 .902  .0197  .0326  .0190 -.0039 -.0029 -.0048
Fe1      0     0     0 .098  .0197  .0326  .0190 -.0039 -.0029 -.0048
Mg2  .9923 .2799   .25 .858  .0253  .0207  .0259  .0028      0      0
Fe2  .9923 .2799   .25 .142  .0253  .0207  .0259  .0028      0      0
Si   .4270 .0938   .25       .0084  .0191  .0140  .0022      0      0
O1   .7650 .0912   .25       .0133  .0275  .0212  .0014      0      0
O2   .2205 .4502   .25       .0214  .0125  .0233 -.0001      0      0
O3   .2825 .1634 .0355       .0200  .0228  .0208  .0003 -.0009  .0066