Abstract
The Fourier transform infrared absorption spectra and Fe Mossbauer spectra have been recorded at room temperature for the recently excavated archaeological pottery sherds. FTIR spectroscopy is used to estimate the lower limit of ring temperature and ring nature of the pottery sherds, and it is con rmed by the results of the Mossbauer technique results. The results show that the Fe Mossbauer and FTIR spectra of few pottery sherds of Perumalpattu and Theriruveli are nearly identical, indicating that they may belong to the same origin. Fe Mossbauer spectra of black coloured sherds show the presence of Fe ions which con rm the relation between the black colour in pottery and the existence of non-magnetic FeO compound, resulting from the reducing atmospheric condition during ring. FTIR results of reddish pot sherds show the presence of signi cant amount of Fe2O3/α-Fe2O3, which con rms again the relationship between the state and form of iron present in the pottery and its colour.
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