Contrary to what most people think, gold is not the most expensive metal in the world. In the list of the five most precious metals, gold ranks third.
Extremely rare, precious and silver-colored metal is the most precious. To create an idea of how difficult it is to find this metal, it should be known that a ton taken from the Earth’s crust contains only 0.001 g of rhodium. It melts at extremely high temperatures and resists corrosion. It is usually used as a function of reflective properties in objects such as mirrors, spotlights or jewelry. Also, it finds use in the car industry and in some fields of industry. The biggest producers are South Africa, Russia and Canada.
The name of this metal is derived from the Spanish term ‘platino’, which means ‘small silver’. It is known as a dense, malleable, non-reactive and non-corrosive metal. Platinum is widely used in jewelry because of its shiny appearance and great resistance. It is also used in dentistry, weaponry and aeronautics. South Africa, Russia, Canada are among the biggest producers.
Gold is the most precious metal and the easiest to recognize because of its unique color. It remains one of the most popular metals and investment options. It is popular because of its color, malleability and conductivity. The world’s most popular metal is used in jewelry, electronics, radiation protection, and thermal insulation. The main sources of gold mining are South Africa, the United States, China, Australia and Russia.
Ruten is one of the platinum group metals. All metals in this family are considered precious metals because they are commonly found together in nature and share similar properties. Its characteristics include hardness and the ability to withstand external elements. Ruthenium is popular in the electronics field as a way to effectively make electrical contacts. The largest producers include Russia, North America and South America.
One of the densest metals, Iridium is the most extreme member of the platinum group. It has one of the highest melting points and is the most corrosion resistant element. The metals are processed from platinum ore and as a byproduct of nickel mining. The largest producer of Iridium is South Africa. It is used in eyeliners, watches, jewelry, compasses, electronics, medicine, and the automotive industry.