Iridium

Iridium is a hard, silvery-white transition metal with the second highest density on the planet. The current price of iridium is roughly $520 per ounce.

It is the most corrosion-resistant metal, and it may be found in meteorites and the earth's crust in large quantities. Smithson Tennant discovered iridium in 1803 and called it after the Greek goddess Iris because its brilliant salts resembled all the hues of the rainbow.

South Africa produces the most significant amounts of this metal, which it sends to countries all over the world for use in a variety of items, including watches and compasses, as well as numerous automobile parts.

Price: $520 per ounce