Near-Infrared Spectroscopic Study of Chlorite Minerals

Figure 2

Infrared spectra of stretching vibrations of hydroxyl groups in the 2000–4000 cm⁻¹ spectral range obtained on the chlorite series in the USGS spectral library. The band positions of 3662, 3554, and 3423 cm⁻¹ are the average values from the IR spectra shown in this plot.