FT-IR, XRD and Mossbauer spectra of recently excavated archaeological potteries from Theriruveli, Tamilnadu, India were studied with as received state and refried at different temperatures in laboratory. The type of clay minerals associated with the potteries, their origin, the oxidation state of iron bearing minerals and the art of firing adopted during manufacturing were established. An attempt has also been made to correlate the colour of the potteries with the iron compounds.
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Venkatachalapathy et al. (2002) studied this question.
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