“…As reported elsewhere [13], one cannot uniquely identify the ferric ions as their IS and QS values overlap with those of Fe 2+ (LS). In these circumstances, as remarked elsewhere [10], the minor iron phase seen in the Mӧssbauer spectra and commonly regarded as the ferric one may be , in fact, a ferrous low-spin phase. To shed more light on the issue, the present study aimed at determination of the Debye temperature, D, of both forms of iron was undertaken.…”