World’s 10 Most Precious Metals

The precious metal always reminds us of gold, silver, and the stuff related to money, but if you think gold or silver is the most expensive metal in the world, you’re wrong.

What is Precious Metal?

O chamado metal preciosoO metal precioso é o metal com baixo teor na crosta terrestre, que é difícil de explorar, extrair e refinar. A maioria dos metais preciosos tem cores bonitas e é bastante resistente a produtos químicos. Devido às suas propriedades físicas e químicas únicas, é insubstituível por outros materiais metálicos e desempenha um papel fundamental em algumas aplicações.

What is the most expensive metal? Join us to explore the world’s top 10 precious metals.

Among all precious metals, gold is one of the rarest and most valued metals, and silver is the same. We can often see them in ornaments, instruments, and electronic products.

But does not know that some platinum group metals (platinum, rhodium, ruthenium, palladium, iridium, osmium) are not well known to us, also within the precious metal group.

10 Most Precious Metals in The World

Ródio is a silver-white, hard metal with high reflectivity; it usually doesn’t form oxides. Even atmospheric oxygen is absorbed by heated rhodium, but it is released during solidification. Rhodium is insoluble in most acids, completely insoluble in nitric acid, and slightly soluble in aqua regia.
The content of rhodium elements in the earth’s crust is only one part per billion, scattered in various ores, and is definitely the most expensive metal.

Último preço: 2.175,00 USD por onça troy
Principais produtores: South Africa, Russia, Canada, and other countries.
Aplicação: Rhodium is corrosion-resistant and has good luster. It is mainly used in the electroplating industry. Electroplate it on other metal surfaces, the coating color is firm, not easy to wear, and has good reflectivity.

Platina is thirty times rarer than gold and can only be mined in very few parts of the world. If all the platinum in the world is poured into an Olympic standard swimming pool, its depth is not enough to cover the instep, and gold can fill at least three swimming pools.
Aplicação: Platinum is very stable in nature and will not deteriorate or fade due to wear. It is a good choice for jewelry. It has been regarded as the most expensive metal in the 2000-year history of human use of platinum, and is sought after by the royal family. Besides, platinum is not soluble in any acid or alkali except aqua regia, and can be used to make corrosion-resistant chemical equipment. In medicine, it can be used as an anticancer drug.
Principais produtores: África do Sul, Rússia, Canadá
Último preço: 845.00 USD por onça troy

Because of its luster and durability, ouro is the easiest identified precious metal and remains a popular investment option.
O ouro é normalmente extraído de rochas e areias de placer por equipamento de extração de ouro e uma série de actividades de processamento de minerais como trituração, lavagem, flotaçãoe gold refining.

Aplicação: Gold has excellent ductility and corrosion resistance; it can be used not only as an ornament, but also in instrument manufacturing and the electronics industry.
Main gold producers: South Africa, America, Australia, and China
Último preço: 1,451.85 USD por onça troy

Ruténio, a member of the platinum group, is one of the rarest metals, found in the earth’s crust at only one part per billion. Ruthenium is stable in nature, resistant to corrosion, and popular for its ability to increase hardness and resistance.

Aplicação: Ruthenium is widely used in jewelry, electronics, chemicals, and other industries.
Principais produtores: Rússia, América do Norte e do Sul
Último preço: 255,00 UDS por onça troy

Irídio is one of the densest metals in the world, has a very high melting point, and excellent corrosion resistance. Iridium is processed from platinum ore and is one of the by-products of nickel.

Aplicação: Mainly used in the manufacture of scientific instruments, thermocouples, resistors, etc. High hardness iron – Iridium alloy and iridium – platinum alloys are commonly used to make nibs and platinum jewelry. Due to its extremely high melting point and superior corrosion resistance, iridium is widely used in high-level technology fields such as aerospace technology, pharmaceuticals, and the automotive industry.
Produtor principal: África do Sul
Último preço: 520.00 USD por onça troy

Ósmio is the densest metal known, which can be used to make super-hard alloys.
Adding a little osmium to platinum can make a hard and sharp osmium-platinum alloy scalpel. Osmium – iridium alloy is hard and wear-resistant, can be used to make bearings for clocks and important instruments, and greatly prolongs the service life.

Principais produtores: América do Norte e do Sul, Rússia
Último preço: 400.00 USD por onça troy

Paládio is one of the richest and most widely used platinum metals. It is the trading variety of international precious metals spot and futures with platinum, gold, and silver.
Palladium is a rare non-renewable resource that is an indispensable key material in the high-tech fields of aerospace, aviation, navigation, weapons, and nuclear energy, as well as the automobile manufacturing industry.

Aplicações: Indústria petroquímica, fabrico de automóveis, indústria química, galvanoplastia, joalharia, etc.
Principais produtores: Russia, the United States, and Canada
Último preço: 1400.00 USD por onça troy

Rénio is one of the rarest elements in the Earth’s crust, and one of the elements with the highest melting and boiling points. Rhenium is the only refractory material that does not form carbide. Since 1925, it has been actively used in the chemical and electronic industries.

Aplicação: O rénio pode ser utilizado em motores a jato e motores de foguetão de alta eficiência, que é a maior aplicação prática do rénio, seguido do catalisador na indústria química.
Principais produtores: Kazakhstan, Chile, and America
Último preço: 1290.00 USD por onça troy

Prata, like gold, is a precious metal with a long history of application. It is a beautiful metal with good ductility and has the highest electrical and thermal conductivity among all metals.

Aplicações: Silver is often used to make highly sensitive physical instrument components used in various automation devices, rockets, submarines, computers, nuclear devices, and communication systems. Also used for jewelry, circuits, batteries, coins, etc.
Main producers: Peru, China, Mexico, and Chile
Último preço：16.55 USD por onça troy

Índio is a silver-white, bluish-tinged metal, so soft it can be scratched with a fingernail. Indium has high ductility and malleability, which is mainly used in the manufacture of ITO material (in the liquid crystal display and flat screen), alloy, semiconductor, electric light source, and so on.

Principais produtores： China, South Korea, and Japan
Último preço：250.00 USD por onça troy

The preciousness of precious metals is not only because of their scarce reserves in nature, but more importantly because of their unique physical and chemical properties, such as corrosion resistance, mechanical properties, catalytic properties, and high-temperature resistance. Precious metals are used in areas such as national defense, financial reserves, energy, electronics, and aerospace. In addition, in the medical field, precious metals also have important uses, especially in the treatment of cancer. For example, oxaliplatin has significant inhibitory effects on various animal and human tumor cell lines, such as colorectal cancer, non-small cell lung cancer, ovarian cancer, and breast cancer.