Willis Gravel Chert











Natural Form:



Description of Physical Characteristics:

Color:  Willis Gravel Chert has great variation of color and can range from most commonly shades of brown and tan, but may range to white to pink or black.  Petrified Wood also occurs.
Texture:

Luster:

Translucency:

Silica Fabrics / Fossils: 
Patina: 

Heat Treatment: 

Knapping:  

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Willis Gravel Chert is associated with the Willis Formation which is said to be an extension of the Citronelle Gravels of Alabama, Mississippi, and eastern Louisiana.  The Citronelle Gravels are part of the Lafayette Gravel Formation.  Willis Chert occurs from western Louisiana and into eastern Texas, Nuevo Leon, and Tamaulipas Mexico.  May be the same as the Uvalde Gravel Chert.
Projectile point made from this material:



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References: (See Reference Page, Entry Number):

Similar Material:
Commonly made projectile point from this material:
Archaeological Context: