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: P1 Rietveld, 9.9% olivine
_database_code_amcsd 0005397
4.7673 10.249 5.9996 90 90 90 Pbnm
atom    x    y    z  occ Biso
Si   .428 .107  .25       .39
MgM1    0    0    0  .82  .40
FeM1    0    0    0  .18  .40
MgM2 .998 .273  .25 .902  .41
FeM2 .998 .273  .25 .098  .41
O1   .782 .081  .25       .50
O2   .195 .439  .25       .48
O3   .202 .163 .017       .52