Gupeiite
Farquhar M C M, Lipson H, Weill A R
Journal of the Iron and Steel Institute 152 (1945) 457-472
An X-ray study of iron-rich iron-silicon alloys
Locality: synthetic
_database_code_amcsd 0019760
5.655 5.655 5.655 90 90 90 Fm3m
atom   x   y   z
Fe1   .5  .5  .5
Fe2  .25 .25 .25
Si     0   0   0