which metal us costly platinum or radium Natural, radioactive metals like polonium and radium,These are some metals that are more rare than gold:Ruthenium, Palladium, Platinum, These are more expensive than gold: Platinum,why radium is more precious than gold Found in Brazil and Zambia and Columbia , and in some cases certain parts of the U.S. Quality in Brazil is the highest. Is not the most valuable minerals are most scarce only, but that requires a lot of money to get them, but it certainly gives us an example of the role played by gold and played as a reserve currency,Made available to humans after the discovery of minerals some of the possibilities that helped him, and to the precious metal ores like gold, the silver, and platinum. These provide sensing images of dimension information quick and inexpensive and plentiful mineral exploration unstable, such as uranium and radium, which launches the alpha and beta radiation.