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 = 1030 C
Atomic parameters obtained from the ICSD
_database_code_amcsd 0001721
4.772 10.35 6.053 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 .907  .0255  .0282  .0199 -.0055 -.0039 -.0058
Fe1      0     0     0 .093  .0255  .0282  .0199 -.0055 -.0039 -.0058
Mg2  .9915 .2804   .25 .853  .0299  .0175  .0268  .0013      0      0
Fe2  .9915 .2804   .25 .147  .0299  .0175  .0268  .0013      0      0
Si   .4276 .0941   .25       .0108  .0181  .0165  .0025      0      0
O1   .7641 .0909   .25       .0150  .0191  .0236  .0014      0      0
O2   .2217 .4515   .25       .0243  .0108  .0262  .0010      0      0
O3   .2820 .1635 .0359       .0255  .0165  .0223  .0005 -.0013  .0078