Grattarolaite

Fe₃O₇P

Modaressi, A.Courtois, A.Gerardin, R.Malaman, B.Gleitzer, C.

Journal of Solid State Chemistry (1983) 47, 245-255

a=8.006Å   b=8.006Å   c=6.863Å

α=90°   β=90°   γ=120°