Accomack Mudstone
Description of Physical Characteristics:
Color:
Accomack Mudstone ranges in color from a light or medium brown to a
yellowish mustard brown.
Texture: Ranges from a high quality fine grain to
lower quality course grain
Luster: Dull
Silica Fabrics / Fossils: Marine fossils are
commonly present. They include clams, shrip, crabs and oysters.
Tube like burrows are often present.
Patina:
Heat Treatment:
Knapping: High quality material has a
good knapping quality and retains sharp edged. Lower quality
material has a poor knapping quality.
Distribution:
Distribution Comments:
Accomack Mudstone appear to be associated with the off shore Yorktown
and Omar formation estuarine deposits. Primary outcroppings occur
off the coast of eastern Virginia. Highest concentrations occur in
Accomack and Northampton counties in Virginia.
Projectile point made from this material:
Pictures Provided By:
References: (See Reference Page, Entry Number):
Similar Material:
Commonly made projectile point from this material:
Archaeological Context:
Accomack Mudstone was primarily used during the
Late Archaic period.
