Photo: Gregor Bader The Mgwayiza Valley in Eswatini A new study has shown that as early as the Stone Age, people in Africa ...

Learn more about the colorful and shiny stones that were turned into tools as many as 40,000 years ago, which were sometimes ...

If you're in the market for a durable, long lasting, and eco-friendly material for your kitchen countertops, we've got a ...

Natural cement found in industrial waste reacts with ocean water to form rocks in just 35 years, instead of millions.

Modern objects stuck in the lithified slag, such as a King George V coin from 1934 and an aluminum can tab from no earlier than 1989, substantiated the team’s dating of the material.