Study suggests ancient hominins used unmodified volcanic rock spheres as tools
A new study by Dr. Margherita Mussi, published in Quaternary International, highlights how naturally occurring basalt spheres ...
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Scientists Stumble on Part of Lost Continent Concealed in a Type of Diamond-Bearing Volcanic Rock, Stuns Them
"The passengers are solid chunks of wall rocks that carry a wealth of details on conditions far beneath the surface of our planet over time." Kimberlite is a diamond-bearing volcanic rock ...