A newly discovered velvet worm species is the first ever found in South Africa's arid Karoo region. In March 2022, ...

The Cambrian-age Tonto Group is a set of rocks famous for holding clues to the burst of new life that reshaped Earth 500 ...

Yooperlites can be found as loose pebbles and cobbles along many Lake Superior beaches and even in some inland gravel pits.

In the gray chill of the North Atlantic, it’s not uncommon to see icebergs float by. But this one was not like the rest. A ...

Mount Etna’s craters continue to smoulder two days after its largest eruption in four years sent tourists fleeing from a vast column of gas and ash on Monday. At such a critical moment in US history, ...

Sodalite is a deep blue to blue-violet mineral best known for its use in jewelry, sculpture, and decorative stonework. Sodalite forms in igneous rocks that crystallized from sodium-rich ...

The scientists dated the rocks using zircon, a mineral in gneiss, the GSA said. "Dating zircon grains using ... techniques is now celebrated as the optimal method for determining when igneous ...

Granite and other rocks made from recycled magma Igneous rocks ... that cooled and partially re-melted over and over—the minerals like quartz in granite melt easily, so they liquefy and separate ...

Mars has a long history of volcanism, and igneous rocks can range in tone depending on their mineral content. Skull Hill may be rich in elements like iron or magnesium, which would account for its ...

The event is hosted by the Black Hawk Gem and Mineral Society, an organization that has been in place since the mid-1950s. Every April for the past 20 years, a wide range of rocks, minerals ...