A new study led by University of Wisconsin-Oshkosh geologist Timothy Paulsen and University of Colorado Boulder ...

An analysis of Hawaii’s volcanic rocks revealed Earth’s core is leaking gold and other precious metals, a study found. The ...

NASA's Juno mission finds a massive lava lake in Jupiter, offering new insights into volcanic activity beyond Earth and the ...

A new study suggests the planet’s iconic domes owe their strange shape to both thick lava and a flexible surface.

Yooperlites are a variety of sodalite-rich syenite found in the Upper Peninsula of Michigan.

Formed after a volcanic eruption when lava cools so fast that mineral crystals are unable to form, the rock appears as amorphous dark-colored glass known as obsidian. Notable qualities of obsidian ...

This was the start of the dream of KMT: The Krafla Magma Testbed, named for the volcanic system in Iceland. It’s a dream that ...

Obsidian is a volcanic glass that cools ... If these bubbles are trapped in the lava, the final solidified rock will have small holes, called vesicles, that are a good indication of the amount ...

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma ... "It's formed when a volcano erupts and lava cools really, really quickly," Allan said.

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma ... "It's formed when a volcano erupts and lava cools really, really quickly," Allan said. "Because it ...

Thankfully, the obsidian rocks at Roslit Bay keep regenerating ... You can farm Lava Crystals by using the drill on the lava rocks. The rest of the items can be fished, and you can even complete the ...

Tom Howarth is a Newsweek reporter based in Bristol, U.K. His focus is reporting on nature and science. He covers climate change, biodiversity, extreme weather, zoonotic diseases and more.