Radium iodoapatite would have the formula,
Ra5(PO4)5I if it could be formed. Radium iodoapatite,
which has not been prepared, has great interest in
academia since the size of the lattice may be sufficient
to allow the formation of the iodoapatite phase. This
salt is probably best prepared by solid-state reaction:
6RaHPO4 + 3RaCO3 + RaI2 ? Ra10(I)2(PO4)6
+ 3CO2 + 3H2O
Whether this compound can be formed remains
speculative.
