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Osmium is an exceptionally rare, bluish-white metal and the densest naturally occurring element, with a density of 22.59 g/cm³. A small fraction (about 1%) of mined osmium is crafted into bullion for investors while the rest is used in industrial applications like making pen tips and electrical contacts.
Osmium coins and bars exist on the market, but are produced by private mints in limited quantities rather than by governments. Some osmium coins are alloyed with other metals to improve workability as pure osmium is very brittle.
For most investors, traditional precious metals like gold, silver, platinum, and palladium remain more practical alternatives. Osmium bullion is best suited for collectors seeking novelty and bragging rights rather than large-scale investment.

What is Osmium?
Osmium (symbol Os, atomic number 76) is a hard, brittle, bluish-white metal in the platinum group known for being the densest naturally occurring element.
Osmium is primarily used in metal alloys to create durable and wear-resistant materials such as pen tips, electrical contacts, and other applications requiring extreme hardness and corrosion resistance. Osmium is also used to create coins and bars for precious metal investing and 0.1% of all osmium mined in a calendar year is turned into bullion.

Osmium coins and bars is a fascinating topic to learn about. Check this out next once you’re done reading. Especially important if you’re an American citizen with a keen interest in precious metals and investing.
Do Osmium Coin and Bars Exist?
Yes, osmium coins and bars exist. They’re rare and not used as everyday currency.
Osmium coins are typically produced as collectibles or investment pieces rather than circulating currency. Below are some key points about osmium coins.
- Osmium coins are made by private mints or precious metal companies, not by national governments.
- They’re produced in limited quantities due to osmium’s scarcity and difficulty to work with.
- Pure osmium is brittle and hard to shape, so some “pure osmium coins” are made of osmium alloyed with some other similar, but less brittle metal.
- Osmium coins are expensive due to osmium’s rarity (it’s one of the rarest precious metals).
- Some osmium coins are produced as commemorative items or for investors interested in rare metals.
Osmium’s high density (22.59 g/cm³) means that even small coins are surprisingly heavy compared to coins made of other metals. For comparison, gold has a density of 19.32 g/cm³ and silver 10.49 g/cm³.
Here’s a comparison of one osmium chunk and eight silver coins. Osmium feels heavier according to the Reddit user who posted that photo.

Here’s some osmium bullion I found online.


Companies that produce osmium coins and bars are rare. Below are the 3 entities that sell them.



Osmium coins and bars is a fascinating topic to learn about. Check this out next once you’re done reading. Especially important if you’re an American citizen with a keen interest in precious metals and investing.
What is a Good Alternative to Osmium Coins and Bars?
The good alternative to osmium coins and bars is bullion made of gold, silver, platinum and palladium, i.e., the four classic precious metals.
I recommend Augusta Precious Metals for your gold and silver bullion needs. They’re the best USA gold investment company and working with them is safe, fast, secure and confidential.
Get Augusta’s free gold investment guide here!

Augusta Precious Metals can help you open both gold IRA and silver IRA.
Is Osmium the Rarest Precious Metal You Can Buy?
Yes, osmium is the rarest precious metal you can buy. This noble metal is rare both in terms of abundance in the Earth’s crust and in commercial availability. Osmium is only the 81st most abundant element in the Earth’s crust. It’s also 10 000 times rarer than gold on the market.
Bottom line is you can never expect to have huge osmium bullion reserves, even if you have millions of dollars to invest. But you can own a small bar just to have the bragging rights.
Osmium coins and bars is a fascinating topic to learn about. Check this out next once you’re done reading. Especially important if you’re an American citizen with a keen interest in precious metals and investing.
Osmium Coins and Bars- Do They Exist? Conclusion
Osmium coins and bars exist, though they’re rare and not used as everyday currency.
Osmium is one of the densest naturally occurring element. It’s used in alloys to create extremely durable and wear-resistant materials, such as pen tips, electrical contacts, and other applications requiring high hardness and corrosion resistance.
You can find osmium-made bullion on the market, but be prepared to pay a lot for it. Osmium coins are typically produced as collectibles or investment pieces rather than circulating currency.
Visit our jewelry store and see which gold coins replicas we sell. We don’t stock osmium coins as these are expensive and rare.
References:
- What is osmium (Os)? An overview of the rarest and densest precious metal in the world- https://metametals.com/osmium-info
- Osmium- https://periodic-table.rsc.org/element/76/osmium
- 252.4 gram Osmium vs. 8 Silver Eagles (248g)- https://www.reddit.com/r/Wallstreetosmium/comments/pdlmfs/2524_gram_osmium_vs_8_silver_eagles_248g/
- Rare remarkable German silver coin. Only 100 pieces. Inlay made of osmium, the rarest precious metal and probably rarest stable element on earth. The os inlay is in its crystalized form, mainly used in jewelry. Other solid forms exist. Osmium is kind of blue what makes it stand out from the others. https://www.reddit.com/r/coins/comments/rfwsfb/rare_remarkable_german_silver_coin_only_100/
- The first 5oz Osmium Bar from Luciteria Science. My Thanks to Rasiel for another outstanding product!!- https://www.reddit.com/r/Wallstreetosmium/comments/15e0pwg/the_first_5oz_osmium_bar_from_luciteria_science/

Nikola Roza
Nikola Roza is the owner of Nikola Roza- Everything You Can Learn About Precious Metals. He writes for people who love precious metals and jewelry and who're interested in adding gold, silver platinum and palladium to their retirement portfolios. Nikola is passionate about gold IRAs and investing in multiple asset types for a safer financial future. He also runs a successful online jewelry store where you can buy precious metal jewelry and various replicas of famous coins and bars. Learn about Nikola here.
