I Tried Turning a 10+ Inch Rock Into a Biface… Bad Idea? @GulfCoastKnapping
I Tried Turning a 10+ Inch Rock Into a Biface… Bad Idea?  @GulfCoastKnapping
Uploaded April 2026 | Updated September 2026, 9 hours ago
In this video, I take on a challenge I wasn’t sure would even work—trying to reduce a massive 10+ inch slab of Dover chert into a usable biface. This piece was gifted to me, and I wanted to see just how far I could push it without losing the whole rock.

Large material like this can be unpredictable, and every strike matters. What started as a simple idea turned into one of the tougher knapping sessions I’ve had in a while.

Did it hold together… or fall apart?



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I Tried Turning a 10+ Inch Rock Into a Biface… Bad Idea?

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