From finding the common Iron and Copper, to the rare Gold, Platinum, Osmium & Iridium, to even ultra rare substances such as Plutonium, Neptunium and …
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Probability Comparison: Rarest Substances on Earth

From finding the common Iron and Copper, to the rare Gold, Platinum, Osmium & Iridium, to even ultra rare substances such as Plutonium, Neptunium and …
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