J. Phys. IV France 125 (2005) 47-50
Caracterization of color centers and dichroism in some Brazilian species of tourmaline using photoacoustic techniqueR.J.S. Lima1, A.S. Vasconcelos1, R.R. Wegner2 and J.F. Suassuna1
1 Department of Physics, Federal University of Campina Grande, Paraiba, Brazil
2 Department of M. and Geology, Federal University of Campina Grande, Paraiba, Brazil
Photoacoustic Spectroscopy (PAS) experiments in the visible and ultraviolet regions of the electromagnetic spectrum were carried out on a variety of tourmaline species. The results of our investigation show that PAS can be seen as a powerful alternative spectroscopic tool in the identification and characterization of color centers in mineral specimens.
© EDP Sciences 2005