Tag Archives: indium

Top 10 Most Rare Metal In The World

1. Rhodium

Commonly used for its reflective properties — in objects like search lights, mirrors and jewelry finish. Also valuable within the automotive industry and in several types of industrial fields.

This extremely rare, valuable and silvery-colored metal is commonly used for its reflective properties. It has a high melting point and an amazing ability to withstand corrosion.800px-Rhodium_78g_sample


Cost: $45 per gram or $1,270 per ounce

2. Platinum 

Platinum can be used as a catalyst in scientific experiments, worn as jewelry, and taken in anti-cancer drugs.


Cost: $48 per gram or $1,365 per ounce

3. Gold

Uses in Jewelry and industrial uses. Its conductivity makes it a great component of electronics, and its reflective surface helps create better radiation shields and office windows.


Cost: $39.81 per gram

4. Ruthenium

Uses: Can be added as an alloy to platinum and palladium in order to increase hardness and better resistance. Ruthenium has become quite popular in the electronics field, as a way to effectively plate electric contacts.


Ruthenium Price 58.00 USD/ozt (46.81 EUR/ozt)

5. Iridium

Uses: Contribute to advancements in medicine, electronics and automobiles. It’s also used in products like pens, watches and compasses.



6. Osmium

One of the densest elements on Earth, osmium is a bluish-silver metal. This very hard, brittle metal has an extremely high melting point.


Uses: Used to harden platinum alloys for electrical contacts, filaments and other uses.

7. Palladium

his grayish-white, precious metal is valued because of its rarity, malleability, stability under hot conditions and ability to absorb a considerable amount of hydrogen at room temperature.


 Automobile makers rely on it for their catalytic converters to reduce emissions, jewelers use palladium to create “white gold” alloys and electronics manufacturers have the option of plating with it.

8. Rhenium

One of the densest metals, with the third highest melting point. Rhenium is a by-product of molybdenum, which essentially is a by-product of copper mining.


Uses: Used in high-temperature turbine engines and added to nickel-based superalloys to improve temperature strength. Other uses include filaments, electrical contact material and thermocouples.

9. Silver

This element has the best electrical and thermal conductivity, as well as the lowest contact resistance of all the metals.


Uses: Jewelry, coinage, photography, circuitry, dentistry and batteries. It can also be used to stop the spread of bacteria in cell phone covers, control odor in shoes and clothing and prevent mold in treated wood.

10. Indium

During World War II, it was used as a coating for bearings in aircraft engines, but it can also be used to create corrosive-resistant mirrors, semiconductors, alloys and electrical conductivity in flat-panel devices.