gold mining process

Gold is a precious metal, one of the types of metals and chemical element symbol (Au), and the atomic number is 79, a metal soft and shiny, and is yellow in color, it has been used since ancient times as a kind of mutual exchange between peoples and traders. There is gold in nature in the river bottoms in the form of granules, also located inside the rocks, or may be found in the form of veins within the Earth’s interior, which is usually found with other metals as a metal copper, or lead, which is characterized by Benahumich, chemical and density, and the lackRead More →