D6FeMg2
Didisheim, J.J.Zolliker, P.Yvon, K.Fischer, P.Gubelmann, M.Schefer, J.
Inorganic Chemistry (1984) 23, 1953-1957
a=6.43Å b=6.43Å c=6.43Å
α=90° β=90° γ=90°