Pumice stones spewed from an undersea volcano that have fouled coasts in Okinawa Prefecture have apparently made a U-turn and could reach the Izu island chain within days, a research institute’s ...

This process can occur either below the Earth’s surface, forming intrusive or plutonic igneous rocks like granite, or at the surface following a volcanic eruption, producing extrusive or ...

MIYAKEJIMA ISLAND—Volcanic lumps of pumice have reached Miyakejima island, about 180 kilometers south of central Tokyo, causing headaches for the local tourism industry. Aerial footage showed ...

That’s the channel inside a volcano that opens up to the surface. As it cools it becomes a very hard type of igneous rock. This one first formed over 350 million years ago. Then, millions of ...

Volcanic rock is formed when lava or magma cools down and becomes a solid. We call this type of rock igneous rock. Here are three different types of igneous rock from the Museum’s collection.

The alleged facial in a jar is made with volcanic pumice rock that deeply and naturally exfoliates and detoxifies skin. It's also said to deliver spa-level results (think smoother, glowing skin ...