One of many defining attributes of Rhodium is its unbelievable resistance to oxidation. Contrary to iron, which easily forms an oxide layer when exposed to oxygen, Rhodium stays almost unchanged. Rhodium is kind of sophisticated to mine. It can be found with PGM metals, such as palladium and platinum. https://rhodiumcoinsforsale46655.bloguerosa.com/34637040/the-fact-about-rhodium-bars-bullion-company-that-no-one-is-suggesting