Jasper
Jasper
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Chalcedony
Chalcedony
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Chert
Chert
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Chalcedony
Chalcedony
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Cecil Black Flint
Cecil Black Flint
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Chert
Chert
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Unmodified Stone Sample
Hornfels "argillite"
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Jasper
Jasper
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Black Flint
Beekmantown black flint
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Heat-Fractured Flake
Heat-fractured jasper
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Talc
Talc
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Jasper
Jasper