Forsterite
Henderson C M B, Redfern S A T, Smith R I, Knight K S, Charnock J M
American Mineralogist 86 (2001) 1170-1187
Composition and temperature dependence of cation ordering in Ni-Mg olivine solid solutions:
A time-of-flight neutron powder diffraction and EXAFS study
Sample: Mg80Ni20 at T = 900 C
_database_code_amcsd 0002717
4.78701 10.3194 6.03014 90 90 90 Pbnm
atom     x     y     z  occ Biso
Ni1      0     0     0 .336 1.27
Mg1      0     0     0 .664 1.27
Ni2  .9891 .2789   .25 .067 1.44
Mg2  .9891 .2789   .25 .936 1.44
Si   .4257 .0925   .25      0.83
O1   .7644 .0928   .25      1.30
O2   .2228 .4494   .25      1.30
O3   .2773 .1621 .0341      1.31