The high-temperature modification of the title mixed compound, cobalt iron
molybdate, a transition metal molybdate of type beta-AMoO(4), with A = (Co0
.7Fe0.3), is metastable at room temperature. The distribution of Fe and Co
is different for the two non-equivalent A sites: only 18 (9)% of all atoms
on the 4i site are Fe, compared with 43 (9)% on the 4h site.