A man, out with his metal detector one morning, believed he had stumbled upon a massive gold nugget. However, the reality was even more astonishing.

David Hole made the remarkable discovery in the soft yellow clay of Maryborough Regional Park near Melbourne, Australia. Given that the region experienced a gold rush in the latter half of the 19th Century, transforming Australia from a remote penal colony to a destination for hopeful immigrants, his assumption wasn't entirely far-fetched.

However, what David had unearthed on that bright May day was something far more rare and valuable than gold. The first hints about the true nature of the mystery rock emerged when David attempted to cut it open to verify if he had indeed struck gold. Unlike gold, which is a relatively soft metal, David's

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