Elkhorn Ridge Argillite









Natural Form:



Description of Physical Characteristics:

Color:  Elkhorn Ridge Argillite ranges from a light gray to a dark or greenish gray.

Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Elkhorn Ridge Argillite is associated with the Elkhorn Formation of northeastern Oregon.  The Elkhorn Formation contains cherty argillite and tuff.  Primary outcroppings occur on Elkhorn Ridge, Willamette National Forest, Baker County, Oregon.
Projectile point made from this material:



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References: (See Reference Page, Entry Number):

Similar Material:
Commonly made projectile point from this material:
Archaeological Context: