Webber's Falls Siltstone
 AKA: Arkansas Argillite











Natural Form:



Description of Physical Characteristics:

Color:  Webber's Falls Siltstone ranges from a greenish gray to dark gray or black.

Texture: Fine grain

Luster: Dull and porcellaneous to cherty

Translucency: Opaque
Silica Fabrics / Fossils:  Cephalopods, pelecypods, gastropods, and crinoid stems
Patina:  Gray to a grayish buff

Heat Treatment: 

Knapping: 

 


 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Webber's Falls Siltstone is associated with the Webber's Falls Member of the Atoka Formation of Oklahoma and Arkansas and occurs around Webber's Falls in the cliffs south of Okay and the bridge over the Verdigris River at Okay in Wagner County, the Bridge over Fort Gibson Lake 8 miles east of Wagner, Oklahoma and in the Boston Mountains of Arkansas.
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:
Prehistoric quarries have been located at this source and artifacts from this source were found at Pueblo Bonito in Chaco Canyon.