Laser Induced Breakdown Spectroscopic Investigation and Discrimination of Sabah’s Pearl

Abstract Natural pearls have different composition that give them specific properties such as colour, lustre effect and can be classified based on differentiation of various constituents such as crystal phase and the presence of various minerals. The aim of this study was to develop a fast, simple, and non-destructive method for discrimination of the popular Sabah’s pearl that commonly used for bracelet, earring, and necklace. In order to discriminate pearls of different colours, emission spectroscopic method, namely laser-induced breakdown spectroscopy (LIBS) complimented with principal compo... Mehr ...