Most Expensive Metals in the World

Are there metals more expensive than gold? Surprisingly, although this iconic precious metal continues to rise in price, gold does not even rank among the three most valuable metals. Most people are unaware that the most expensive material in the world is produced artificially rather than occurring naturally.At present, the most valuable metal in the world is not gold or silver, nor even platinum, but the little-known californium. Due to their high cost, rare metals are seldom traded on the open