Dean Caldwell of Cicero has been mining opal and obsidian for six months of the year in Mexico for the last 15 years. Last ...

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

Beacon is a very powerful block in Minecraft that aids in granting players various positive status effects in a fixed location.

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 ...

Hundreds of obsidian artifacts have revealed where the Aztecs acquired the volcanic glass they used for tools, ornamental pieces or religious objects centuries ago — and their vast trade ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Hundreds of ...

The Aztec Empire once hosted an expansive trade network that brought volcanic glass to its capital from right across Mesoamerica, from coast to coast. The largest compositional study of obsidian ...

We have a graphic representation of Obsidian Energy's balance sheet and an in-depth analysis of the company's financial position. Have feedback on this article? Concerned about the content?

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast prehistoric trade networks that once cut across western North America.

Obsidian is the Winamp of productivity tools. If you're as ancient as I am, you might remember that the best part of that once-ubiquitous music player extension was the massive number of plugins ...

Obsidian, a widely recognized note-taking and knowledge management tool, has introduced a significant shift in its business model: organizations can now use the software for free without requiring ...