Brazil on Top of the Tantalum Game | Investing News NetworkMay 10, 2012 . Brazil is the silent king of tantalum. Destinations where there are issues surrounding conflict minerals or mine closings and reopenings often.brazilian graphite mining,Graphite 101 | Focus GraphiteLac Knife is one of the highest-grade large flake, natural graphite deposits in the . Flake graphite has also traditionally been imported to the U.S. from Brazil,.
brazilian graphite mining