Example of discarded preform?

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Greenie
Oct 20, 2023
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dognose

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Apr 15, 2009
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I agree this does not have the characteristics I would expect to see on a tool or relic pecked and ground to shape.

it looks like limestone with encrustations. typically a hardstone igneous stone IE: granite or greenstone, is the choice of material. phophery and the like.
 

robertk

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Agreed. Soft, porous, what I refer to as "worm rock". It would not make a good tool, and I don't see any evidence that it was intended to be one.
 

dirstscratcher

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Mar 8, 2019
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Here's another educational preform artifact; an in process bird stone that split longitudinally, and was abandoned. It's on tightly banded slate that's pretty spectacular when wet. The pecking is obvious with some areas smoothed before the catastrophic failure. Unfortunately, it's the only bird stone I've ever found.
 

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