Uploaded May 2026 | Updated September 2026, 1 day ago

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Using nothing but a single stone and raw black obsidian, I set out to create a primitive cutting tool with no modern tools, no antler, and no extra hammerstones. Just one rock against volcanic glass.

Watch as this piece of obsidian is reduced entirely through direct percussion in a true primitive flint knapping challenge. The razor-sharp edges obsidian creates never get old.

Would you try this challenge yourself?

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