Color:  Four Mile Creek Chert ranges from a pink to an off white, light gray, light blue, or light bluish gray color.  Chalcedony inclusion may be present.

Texture:  Fine grain

Luster: Waxy to vitreous

Silica Fabrics / Fossils:

Patina:

Heat Treatment:  Heat treatment produces colors of blue, purple, red, and pink,

Knapping:
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Four Mile Chert is associated with the Salamonie formation of the Laurel member of Ohio and Indiana.  Primary outcroppings are located along the banks west bank of Four Mile Creek in Preble County, Ohio.