Applications of FTIR and 57 Fe Mössbauer Techniques in Studies of Recently Excavated Indian Archaeological Pottery

Abstract

The Fourier transform infrared absorption spectra and 57 Fe Mössbauer 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 conrmed by the results of the Mössbauer technique results.The results show that the 57 Fe Mössbauer and FTIR spectra of few pottery sherds of Perumalpattu and Theriruveli are nearly identical, indicating that they may belong to the same origin.57 Fe Mössbauer spectra of black coloured sherds show the presence of Fe 2+ ions which conrm 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 signicant amount of Fe2O3/α-Fe2O3, which conrms again the relationship between the state and form of iron present in the pottery and its colour.

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