Types Of Mining All Around The World

Nov 04 2013nbsp018332Grasberg is also the biggest gold mine in the world by reserve The Grasberg mineral deposit was discovered in 1988 Openpit mining operation started in 1990 Mining at the Grasberg openpit which is one of the deepest openpits in the world is expected to continue up to 2016 PTFI holds a 9064 interest in the Grasberg mining operation