Opeche Chert
 AKA: Opeche Siltstone










Natural Form:



Description of Physical Characteristics:

Color: Opeche Chert is a reddish color

Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Opeche Chert is associated with the Opeche Limestone Formation of  western South Dakota, Wyoming, and northwestern Nebraska.  Primary outcroppings occur in the Black Hills and along Battle Creek.
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: