Vanport Siliceous Shale
AKA: Jefferson County Chert
Description of Physical Characteristics:
Color:
Vanport Siliceous Shale is dark gray.
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Distribution:
Distribution Comments:
Vanport Siliceous Shale has primary outcroppings along Redbank Creek in Jefferson and Armstrong counties, Pennsylvania.
Projectile point made from this material:
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Commonly made projectile point from this material:
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