Eucha Chert
 AKA: Spavinaw Chert, Euchaleda Chert









Natural Form:



Description of Physical Characteristics:

Color:  Eucha Chert is banded and ranges from white to gray or yellowish gray.

Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Eucha Chert has primary outcroppings in the region of Spavinaw Reservoir and near Eucha, Delaware County, Oklahoma.  Eucha Chert is a name primarily used by lapidaries and rockhounds for cherts found around Spavinaw Reservoir and the adjacent region.  Chert bearing formations of Spavinaw Reservoir include Reed Springs Formation (Reed Springs Chert), Cotter Limestone Formation (Cotter Chert), and Keokuk Limestone Formation (Keokuk Chert). Boone Limestone Formation also outcrops in this region (Boone 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: