Color:  Hertha Chert ranges from a  white to a light gray color.

Texture:  Fine grain

Luster:

Silica Fabrics / Fossils: Braciopods

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Hertha Chert is associated with the Sniabar Member, Hertha Limestone Formation of the Kansas City Group of Kansas.  Primary outcroppings occur in southeastern Miami County, Kansas and Union and Pottawattamie counties, Iowa.