Analisis Jenis Dan Kadar Logam Pada Batuan Buangan Dari Pertambangan Emas Rakyat Poboya

Metals has an important role for human life, especially in the industrial
field. The purpose of this research is to identify the metals type and their content in
by product rock from the Poboya gold mining. The sampling technique is done by
grabbing sampling, which is to take a lump of rock at a mining site. The analytical
method used to identify the metals type and determine their content in by product
rocks is XRF (X-Ray Fluorescence) spectrophotometry. Based on the analysis
results, by product rocks from the Poboya gold mine consist of Silicon (Si), Iron
(Fe), Potassium (K), Aluminum (Al), Calcium (Ca), Titanium (Ti), Arsenic (As),
Zirconium (Zr), Manganese (Mn), Strontium (Sr), Barium (Ba), Rubidium (Rb),
Zinc (Zn), Niobium (Nb), Indium (In), Tin (Sn) and Stibium/Antimony (Sb). The
highest percentage of metals are Silicon 52.98% and Iron 23.56% or as oxide
compound silica oxide (SiO2) 67,76% and iron oxide (Fe2O3) 14,15%. Therefore, it
is recommended in further research for utilizations of the rocks.