Low wavelength range spectra of gypsum (alpha
spectrum) and anhydrite.
Complete spectrum of gypsum with the water stretching
range above 3000 cm-1 included. Polarizer along
alpha index.
Details of the water stretching vibrations of gypsum.
Spectra recorded for the 3 axes alpha beta and gamma. The spectra can be compared
with the harmonics
recorded in the NIR.