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: P5 Rietveld, 49.9% olivine
_database_code_amcsd 0005401
4.7651 10.2385 5.9983 90 90 90 Pbnm
atom    x    y    z  occ Biso
Si   .427 .095  .25       .39
MgM1    0    0    0 .902  .40
FeM1    0    0    0 .098  .40
MgM2 .988 .277  .25 .902  .41
FeM2 .988 .277  .25 .098  .41
O1   .769 .090  .25       .50
O2   .220 .445  .25       .48
O3   .272 .163 .031       .52