Rhodium
It costs $58 per gram.The major use of rhodium is in automobiles. It is used as a catalyst in the three-way catalytic converters. The biggest quality of this metal is its inert behavior against corrosion and most aggressive chemicals.
Gold
It costs $56 per gram. Gold is one of the most widely known and used elements in the world, especially in jewelry. Almost every ancient civilization on earth considered this metal to be valuable. Science, it also proves that some of the characteristics of gold make it perfect for electronic use, though the high cost is the biggest hurdle to using it in wires.
