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

They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

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

“Like father, like son” — that saying holds true for Alan Bentley, 67, and his son, Travis, 44, of the Sugar Loaf Community.

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

To answer these questions, it is easiest to start with the amount of gold that humans have mined to date. The U.S. Geological ...

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 ...

A belt of swirly, stripey rock in the northeast reaches of Canada looks like it contains some of the oldest minerals ever ...

These rocks really shouldn't be there. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The surprising discovery of volcanic, "igneous ...

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 ...