Powder River Porcellanite
AKA: Powder Basin Porcellanite
Description of Physical Characteristics:
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Distribution Comments:
Powder River Porcellanite is associated with the Powder River Formation
of southeastern Montana and northeastern Wyoming.
Projectile point made from this material:
Pictures Provided By:
References: (See Reference Page, Entry Number):
Similar Material:
Commonly made projectile point from this material:
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