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

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

Sedimentary rock is comprised of sediment, as the name suggests. Over time, tiny minerals, sand, rocks, and debris layer on ...

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

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 ...

This action is believed to account directly or indirectly for many varieties of igneous rock. Igneous Rocks and their Origin. By Prof. R. A. Daly. Pp. xxii + 563.

Igneous rock is formed by the cooling of molten rock, either at the surface (lava), or underground (as granite or other similar rocks).The heat of molten rock usually incinerates organisms rather than ...

It forms when igneous rocks like granite undergo intense heat and pressure, changing their structure and appearance over time. But buried within this ancient gneiss is something even more valuable ...

In a recent study, geologists say Michigan is home to the oldest known rock in the nation. Watersmeet gneiss is found in Michigan's Upper Peninsula. Minnesota's Morton gneiss previously held the ...

Igneous Rock Phosphate: ore grades, concentrates and mining operations around the world. Drs. Sandeep Banerjee, Peir K. Pufahl, Sarah Dare Department of Geological Sciences and Engineering, Queen ...

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 ...