Color:  Minnelusa Chert ranges from a tan cream to white or very pale gray or a pale reddish purple.   

Texture:  Fine grain

Luster: Waxy

Translucency:  Opaque

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Minnelusa Chert is associated with the Minnelusa Formation of the Black Hills of South Dakota.  Primary outcroppings occur in the Black Hills of South Dakota.