Devil's River Chert
 AKA: Santa Elena Chert











Natural Form:



Description of Physical Characteristics:

Color:  Devil's River Chert ranges from a light gray to light brown and may be brecciated.
Texture:  Fine grain

Luster: Waxy

Translucency: Opaque

Silica Fabrics / Fossils:  Crinoids, gastropods, and miliolid

Patina:

Heat Treatment: 

Knapping:  

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Devil's River Chert is associated with the Devil's River Limestone Formation (Santa Elena Limestone Formation) of southwestern Texas.  Primarily occurs as large nodules in the limestone along the Devil's River in Val Verde County and extends into southern Real County, southern Edwards County, northwestern Medina County, throughout the Rio Grande near the mouth of the Pecos River and into Mexico into the southern Sierra del Carmen and Sierra de Geronimo and towards Musquiz, Coahuila Mexico.  Also exposed at mouth of Santa Elena Canyon, Santiago Peak, and in the Black Gap area of Texas.
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:

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