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: P7 Rietveld, 70.0% olivine
_database_code_amcsd 0005403
4.7649 10.2370 5.9980 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 .990 .277  .25 .898  .41
FeM2 .990 .277  .25 .102  .41
O1   .765 .091  .25       .50
O2   .218 .446  .25       .48
O3   .278 .163 .032       .52