Raman and ATR Infrared Spectra of Gypsum Crystallization Water

Here we propose a comparison of Raman and Attenuated Total Reflectance (ATR) Infrared spectra of the gypsum crystallization water. The comparison is obtained by means of some deconvolutions of the OHstretching mode spectral regions, where the vibrations of the water molecules bonded into gypsum crystal structure are evidenced. We use gypsum Raman and ATR-IR spectra available from RRUFF database. For what is regarding the data from literature, we will refer also to those obtained by research in the first period of the Raman spectroscopy, that is for 1929 to 1945. We find good agreement among data.