Raman Study on Pompeii Potteries: The Role of Calcium Hydroxide on the Surface Treatment

Figure 4

Raman spectra of the external and internal surface of samples VI59B7Z (a) and VII59B11. The inset in the (a) section is an enlarged view of the external surfaces of sample VI59B7Z. The inset in the (b) section reports the Raman spectrum form the cross section of sample VII59B11. The peaks are identified as TiO₂ in the anatase (indicated with A) and rutile phase (R).

(a)

(b)