A replica of the Welcome Stranger, a gold nugget weighing almost 100 kilograms found in Australia in 1869 Ian Dagnall/Alamy …
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Latest in geology
The oldest known piece of Earth? A 4.4 billion-year-old zircon John Valley, University of Wisconsin-Madison Until recently, many discounted the …
A sample of rock from Earth’s mantle viewed under a microscope Johan Lissenberg In the middle of the North Atlantic …
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