Microbes have been discovered alive inside 2-billion-year-old rock, offering a rare window into Earth’s deep past. Found in ...

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

The conclusion arrived at from this is, that granite is not a simple igneous rock, formed as geologists have generally taught, when the earth was :i mass of fire, and when no water could be found ...

Places such as Purgatory Chasm and Millstone Hill, in Worcester's Green Hill Park, bear witness to the work of the glaciers.

What type of rocks are thundereggs. There are three types of rock: igneous, metamorphic, and sedimentary.Thundereggs form ...

Igneous rocks — which form as magma solidifies either deep within Earth or at the ... is a type of rock composed of crystals of water. In 2014, scientists proposed naming a new type of rock ...

Zircon crystals in igneous rocks must be carefully examined and not relied upon solely to predict future volcanic eruptions and other tectonic events, researchers have shown. The researchers ...

Intrusive rocks cooled slower, allowing the minerals to form crystals that can be detected by the eye. The most common intrusive igneous rock in the area is known as diabase.

Thought to be some 4.6 billion years old, the space rock is the oldest igneous meteorite—formed when molten rock cools and solidifies—ever discovered, scientists reported in the journal Nature ...

An examination of crystals of zircon in rhyolites, an igneous rock, from the Snake River Plain solidifies evidence for a new view of the life cycle of super-volcanic eruptions, and in tandem with ...

Sodalite forms in igneous rocks that crystallized from sodium-rich, silica-poor magmas. That’s how it got its name—soda + lithos, or “sodium stone," according to Rock Your World gem & art ...