Graywacke
Description of Physical Characteristics:
Color:
Graywacke is greenish gray with dark specks of felsite and quartz
Texture:
Luster: Dull
Silica Fabrics / Fossils:
Patina: Patina is a lighter green
Heat Treatment:
Knapping:
Distribution:
Distribution Comments:
Graywacke is associated with the lower member of the Georgian Bay
Formation. Primary outcroppings are located in Meadford in
southwestern Ontario, but can be found throughout southwestern Ontario.
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:
Was used throughout the Archaic period for large
bifaces and later in the Woodland period for ground adze and celts.
