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

Like other igneous rocks, the glossy glass originates from molten rock that has been spewed out from the bowels of the Earth via volcanoes. Before we get into the snowflakes, obsidian is formed ...

As with other forms of obsidian, rainbow obsidian is both rock and glass. However, this isn’t the same kind of glass that’s used in your nice new French doors. It’s far more badass ...

Māori in the Auckland and Northland regions were historically quite social, a recent study employing "social network analysis" of obsidian rock has found. Obsidian was used as a tool by Māori ...

Obsidian is a black, often translucent rock. Volcanic eruptions sometimes ooze out magma that turns into this natural glass as it cools. Obsidian is hard, durable and can be worked to a razor ...

The director of Avowed is no longer at Obsidian, having announced that she'll now be working as a game director at Oxenfree developer Night School.

We all squint, looking for chips of rock someone carried from a volcanic mountain in middle Alaska, 95 miles east of us, father up the Koyukuk River valley. The obsidian rock found here was from ...

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The new excavations also revealed that Level C experienced seasonal flooding, with a meandering river likely depositing obsidian rocks at the site during this time of Level C. Obsidian axes from ...

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