Forsterite
Baur W H
American Mineralogist 57 (1972) 709-731
Computer-simulated crystal structures of observed and hypothetical Mg2SiO4
polymorphs of low and high density
Locality: hypothetical
_database_code_amcsd 0000276
4.79 10.19 5.85 90 90 90 Pbnm
atom     x     y     z
Si   .0945 .4078   .25
Mg1      0     0     0
Mg2  .0056 .2632   .75
O1   .2499 .0907   .75
O2   .2832 .0578   .25
O3   .2312 .3370 .4707