Gram of Plutonium
Plutonium is a radioactive actinide metal primarily produced in nuclear reactors, used as fissile material in nuclear weapons and reactor fuel.
Estimated value as of 2026 · Source: Infographic on element prices per kg
Fun Fact
Plutonium-239 is one of the most expensive elements due to its rarity, production complexity in nuclear reactors, and strict regulations on handling.
Price History
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Stepping Stone
A garden stepping stone is a decorative concrete or stone paver used to create pathways through lawns, gardens, or patios, often featuring embossed designs like flowers, animals, or verses.
Fossil Tyrannosaurus Rex Skeleton (Stan)
Nearly complete T-Rex skeleton auctioned for research and display.
Californium-252 (per gram)
Rare synthetic element produced in nuclear reactors, the rarest element in practical use.