Color:  Obryant Chert ranges in color from a mottled white to gray or blue with calcium carbonate vermiculate lines.

Texture:

Luster:

Silica Fabrics / Fossils: Fossiliferous

Patina: Gray with iron staining

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Obryan Chert is associated with the Obryan Member of the Allegheny Formation of Ohio.  Primary sources are located along the Ohio River in Scioto and Lawrence and Vinton counties Ohio.  May be found into the surrounding region in Kentucky and West Virginia.