Color:  Brazos River Chert is most commonly light colored but green, black, yellow, and red, banding may occur.

Texture:

Luster:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Brazos River Chert occurs as nodules in the Mineral Wells Conglomerate, associated with the Mineral Wells Formation.  It extends from the Brazos River to Mineral Wells.  Primary beds are seen along the Texas Pacific Railway between Gordon and Santo Texas.