Fe3Si
Farquhar, M. C. M.Lipson, H.Weill, A. R.
Journal of the Iron and Steel Institute (1945) 152, 457-472
a=5.655Å b=5.655Å c=5.655Å
α=90° β=90° γ=90°
Fe5Si3
Weill, A. R.
Nature (1943) 152, 413-413
a=6.7416Å b=6.7416Å c=4.7079Å
α=90° β=90° γ=120°