Identification Of Java Agate Elements Using Libs Methods

Abstract

Agate is a stone that is created due to natural processes from the deposition of fossils and the formation of minerals that combine to become an agate. In essence, agate contains elements contained therein. The content of these elements can be used to distinguish the type of agate. Several methods are used to detect the elemental content of agate, including X-Ray Fluorescence and X-Ray Diffraction methods. In this study, agate will be tested using the LIBS method. The LIBS method is an alternative and effective method for identifying elements from a sample because this method does not require the sample to receive special treatment. Laser plasma optimization is done by varying the laser energy. The higher the value of the laser energy given, the intensity of the elemental spectrum will be higher. The results of the LIBS method show compatibility with the XRF method as a comparative study. The results showed that the elements contained in the agate are the elements Al, Mn, Si, Fe, Mg, Na, and Ca.