Dongola Chert
Cobden - Dongola Chert












Natural Form:



Description of Physical Characteristics:

Color: Shades of dark dark tan to dark brown with banding of dark brown

Texture:  Fine grain

Luster: Glassy

Silica Fabrics / Fossils: Uncommon

Patina:

Heat Treatment:  Not commonly used

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments: 
Dongola chert is associated with the Upper St. Louis formation with primary sources found in outcroppings in Dongola Illinois and along Big Creek.
Projectile point made from this material:




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References: (See Reference Page, Entry Number):

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