Color: Wallkill Chert ranges in color from black to bluish gray or light gray.

Texture:  Medium to fine grain

Luster: Vitreous

Silica Fabrics / Fossils: Micro fossils include algal beds and Pisoids

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Wallkill Chert is associated with the Wallkill Member of the Leithsville Formation and is found in thick beds and pods and has primary sources in Sussex County New Jersey.