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Marblehead Rhyolite(Ma)

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  • Marblehead Rhyolite(Ma)

    This variety of rhyolite is found in outcrops along the shore north of Boston. It can be maroon, grey, or black, but the white phenocrysts help it stand out. It is one of the most recognizable of the rhyolites found in southern New England collections. All examples seen here are from Rhode Island.

    Two sides of a bipointed leaf blade. Note the different patina from one side to the other. Click image for larger version

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    Click image for larger version

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    Click image for larger version

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    On left, a Fox Creek. On right, a Lamoka: Click image for larger version

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    There are some varieties of Marblehead Rhyolite that show very little to almost no patina. And this is the case regardless of the age of the artifact. In the group below, this near complete lack of patina is the case with the far left point. And it may be early to middle Archaic in age. Not quite certain, but has a slight bifurcation in base, suggesting fairly early. The middle piece, off a flake, also shows very little patina. The point on far right appears to be an Atlantic Phase broadpoint, and shows more patina. Click image for larger version

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    Last edited by CMD; 05-21-2016, 07:09 PM.
    Rhode Island
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