Francium, a rare earth element, can fetch up to $7 billion due to its scarcity and high production costs.
It is a rare and expensive metal, is sought after due to its unique properties.
It is a hazardous radioactive element used in nuclear reactors and weapons, is highly expensive, often costing tens of thousands of dollars per gram due to its restricted use.
Osmium, renowned for its density, is utilized in various industrial and scientific fields and is typically priced between $400 to $500 per ounce.
This chemical element, is utilized in chemotherapy drugs and as a catalyst in the chemical industry, with its current trading price of $850 per ounce.
It is a costly precious metal, enhances the strength and corrosion resistance of other metals in alloys, currently trading at $280 per ounce.
A crucial component in catalytic converters, jewelry, and electronics, has experienced significant price increases in recent years, typically ranging from $1,500 to $2,500 per ounce.