The volcanic rock was found 5,050 feet deep while the Ocean Exploration Trust was investigating a central Pacific region that has “over 300 unexplored seamounts” created by ancient volcanos. The ...

Watch as a rare fluorescent treasure hunt unfolds on the shores of Lake Superior where ordinary rocks hide a dazzling secret under UV light. Erik Rintamaki, a tour guide from Michigan, USA, takes ...

When exposed to UV light, the sediment in this piece of volcanic rock phosphoresces, glowing green for several seconds. This brief “glow in the dark” effect reveals the sediment is made out of calcite ...