Many people mistakenly believe that the most expensive metals in the world - it's platinum, gold and silver. But in fact there are other dense chemical elements that are hundreds of times greater than their cost. The highest bidder is determined by such factors as the rare, difficult and properties. Let's have a look most expensive metals in the world.

World's Top 10 Most Expensive metals

10. Ruthenium

Ruthenium opens ten most expensive metals. Chemical element bright silver color different refractoriness, hard and brittle. Ruthenium - one of the rarest elements of the platinum group. It was first opened by Professor Karl Klaus, who conducted the study at Kazan University in 1844. The name of the element comes from the Latin Ruthenia, which means Russia / Russia. Ruthenium is actively used in jewelry, electronics and chemical industries. It is used for manufacture of electrodes, wires, contacts, etc. With the element prepared as chlorine and alkali. The cost of 1 gram of metal is estimated today at 1.5 US dollar.

9. Rhenium

The ninth place among the most expensive metals in the world takes rhenium. Chemical element dense silvery-white color is also considered one of the most rare and sought-after hard isotopes. Because of its high density rhenium among the most refractory metals. Since the opening element (1925) it is actively used in the chemical and electronic industries. From it are made alloys for jet nozzles, turbine blades, rocket technology, etc. This is the only refractory element which does not form carbides. On average, 1 gram rhenium is estimated at $ 10.

8. Scandium

Scandium is one of the most expensive metals in the world. Element silver with a yellow tint was first discovered in 1879, thanks to the Swedish scientist Lars Nilsson, who named it in honor of Scandinavia. The most valuable isotope used in innovative technologies in the construction of rockets, robots, lasers, satellites and aircraft. From alloys with the sports equipment made element. The biggest deposits of scandium are concentrated in Madagascar and Norway. One gram of metal valued at $ 12.

7. Iridium

Iridium takes the seventh place among the most expensive metals in the world. Isotope silver-white color resembles tin. It is very heavy, solid and yet fragile. Iridium is most commonly used for the manufacture of alloys with other metals, such as platinum. Ornaments of this alloy is characterized by high wear resistance and are very beautiful. Iridium is widely used in the manufacture of electrical contacts, the precise chemical balance and surgical instruments. On the metal world I have learned through the British chemist S. Tennatu which it opened in 1803. Currently, it spent about a ton of iridium annually. Its supplier is in South Africa - this is where concentrated field. One gram of the isotope is estimated at about $ 20.

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6. Palladium

Palladium - one of the most expensive metals in the world, which belongs to the platinum group. Silvery-white isotope differs fusible and plasticity. It lends itself perfectly polished, it does not lose luster over time and resistant to corrosion. It was opened by the British chemist William Wollaston in 1803. The scientist decided to separate the unknown metal from the platinum ore, which arrived from South Africa. Now palladium is widely used for making jewelry of different price categories. Also, it is widely used in medicine and industry, thanks to its anti-corrosive properties. One gram of metal is about 30 US dollars.

5. Gold

Gold has settled in the middle of dozens of the most expensive metals in the world. In nature, the noble isotope found only in pure form. Due to its ductility and durability of the gold is considered one of the most popular metals used for the production of jewelry. In addition, it is used in the electronics industry and dentistry. Some of the most expensive investment coins are minted from gold. Nowadays you can easily invest in gold by getting a gold subscription box. The cost of 1 gram of the noble element is estimated at US $ 45.

4. Platinum

Platinum takes the fourth place among the most expensive and precious metals in the world. It is a natural fusion of six isotopes, which has silvery-white hue. Platinum is one of the rarest elements. Its deposits are found mainly in Russia, USA, China, South Africa and Zimbabwe. Platinum is not only used for the production of jewelry, but also for medical and industrial purposes. Earlier, the metal silver ranked as low quality and often used to fake articles of silver and gold. To date, 1 gram of platinum on average is estimated at $ 70.

3. Rhodium

Rhodium opens three most expensive metals in the world. Since it has a high light reflectivity, it is used in the manufacture of glass and mirrors. In addition, it is used for the production and processing of jewelry. Rhodium gives the product luster and does not allow them to darken, due to its high resistance to oxidation. One gram of the isotope is estimated today at 225 dollars.

2. Osmium-187

Osmium-187 takes the second place among the most expensive metals in the world. Its production is associated with certain difficulties and requires time of about 9 months. One of the rarest isotopes in the form of a black fine-grained powder is the most dense substance in the world. But despite this, the most valuable element is fragile. For scientific research osmium-187 is critical, since it is used as a catalyst in chemical reactions, as well as for the production of measuring devices with high precision. The cost of 1 gram of osmium-187 is 200 thousand US dollars.

1. CA-252

Topping the list of the most expensive metals in the world californium-252. The cost of 1 gram of California is estimated at 6.5 million dollars. Annually about 30-40 micro-grams element that justifies its inflated price. Only 8 grams of californium-252 was produced by Total. It was first produced in one of the University of California in 1951.

Now it creates in the laboratory with the help of nuclear reactors in the United States and Russia. The uniqueness of the isotope is its emitted energy, which power can be compared with the average nuclear reactor. It is actively used in medicine and nuclear physics. By using californium-252 treatment produced malignant tumors. Metal is able to detect damage to the reactors and the construction of the aircraft, which are not able to detect X-rays. In addition, the most expensive item used for the discovery of new oil fields, gold and silver.

Top 10 Most Expensive Metals In The World Photo Collected : www.google.com