Forsterite
Liang J, Hawthorne F C
The Canadian Mineralogist 32 (1994) 541-552
Characterization of fine-grained mixtures of rock-forming minerals by Rietveld
structure refinement: olivine + pyroxene
Sample: P9 Rietveld, 89.6% olivine
_database_code_amcsd 0005405
4.7660 10.2379 5.9992 90 90 90 Pbnm
atom    x     y    z  occ Biso
Si   .428  .095  .25       .39
MgM1    0     0    0 .902  .40
FeM1    0     0    0 .098  .40
MgM2 .990 .2778  .25 .900  .41
FeM2 .990 .2778  .25 .100  .41
O1   .768  .089  .25       .50
O2   .217  .446  .25       .48
O3   .278  .161 .032       .52