Issue J. Phys. IV France Volume 125, June 2005 Page(s) 47 - 50 DOI 10.1051/jp4:2005125012

J. Phys. IV France 125 (2005) 47-50
DOI: 10.1051/jp4:2005125012

Caracterization of color centers and dichroism in some Brazilian species of tourmaline using photoacoustic technique

R.J.S. Lima¹, A.S. Vasconcelos¹, R.R. Wegner² and J.F. Suassuna<sup>1

1</sup>  Department of Physics, Federal University of Campina Grande, Paraiba, Brazil
²  Department of M. and Geology, Federal University of Campina Grande, Paraiba, Brazil

Abstract
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

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