Infra-Red Absorption Spectra Study of Some Amphibole Minerals

Infrared spectra of some amphibole minerals show that the absorptivity of the fundamental vibrational OH band is strongly wave number dependent. The investigated have been done on sample include amphibole of termolite,actinolite, anthophylite, grunerite, riebeckite and amphibole asbestos. Spectra obtained from Ca and Fe-Mg amphiboles consist of sharp, well resolved bands. The emphasis on the hydroxyl stretching region, but the vibrational spectra of the silicate anions also discussed.