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Gold Miners Dig Deep — To The Ocean Floor<strong><br></strong>

04:51
A robotic arm breaks off a chunk of mineral-rich rock deep underwater. Nautilus Minerals of Australia hopes to develop and expand undersea mining by extracting copper, gold, silver and zinc from the seafloor. (Nautilus Minerals)
A robotic arm breaks off a chunk of mineral-rich rock deep underwater. Nautilus Minerals of Australia hopes to develop and expand undersea mining by extracting copper, gold, silver and zinc from the seafloor. (Nautilus Minerals)

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