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As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium , iridium and palladium by mass and iridium, gold and platinum by volume . Carbon in the form of diamond can be more expensive than rhodium.
In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $1 million AUD, making it the largest minted coin in the world with a gold value of around $50 million AUD. [2] China has produced coins in very limited quantities (less than 20 pieces minted) that exceed 8 kilograms (260 ozt) of gold.
The Willamette Meteorite, the sixth-largest meteorite found in the world, has 4.7 ppm iridium. [59] Iridium is one of the nine least abundant stable elements in Earth's crust, having an average mass fraction of 0.001 ppm in crustal rock; gold is 4 times more abundant, platinum is 10 times more abundant, silver and mercury are 80 times more ...
27. To'ak Chocolate. Cost: $5 per gram and up To’ak Chocolate is the rarest and most valuable in the world. The company sources its cacao from certified Ecuadorian heirloom Nacional cacao pods ...
18. Platinum. Cost: $33.02 per gram Platinum is a beautiful precious metal that is in a similar category as gold and silver. All three of these metals are frequently traded in the global markets ...
Only six of the nearly pure gold coins have ever been made, as of December 2022, and each has a face value of $1 million. They were used as a promotional showpiece for the mint’s one-ounce Gold ...
Iridium stock doesn't cost a lot -- but probably still costs too much for its slow growth rate. Skip to main content. 24/7 Help. For premium support please call: 800 ...
Osmiridium has been defined as containing a higher proportion of iridium, with iridosmine containing more osmium. However, as the content of the natural Os-Ir alloys varies considerably, the constituent percentages of specimens often reflects the reverse situation of osmiridium describing specimens containing a higher proportion of osmium and ...