Croton Tabular Chert
AKA: Warsaw Tabular Chert










Natural Form:



Description of Physical Characteristics:

Color:  Croton Tabular chert is very homogenous and opaque chert ranging in color from a creamy gray to a light gray with a off white to light tan cortex.

Texture:  Fine grain

Luster: Dull

Silica Fabrics / Fossils:

Patina:

Heat Treatment:  Heat treatment is commonly used and changes the color to a medium to medium dark gray with a satin to glossy luster.

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:

Croton Tabular Chert is associated with the Croton formation of the St. Louis formation of southeastern Iowa.  It occurs in flat seams in the Croton formation.  Primary outcroppings occur in Henry, Jefferson, and Keokuk counties, Iowa.   

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:

Artifacts made from Croton tabular chert often retain the cortex a the center of mass on one or both faces.