Color:  Crowley's Ridge Chert ranges from brown to tan, greyish tan, yellowish tan, or cream.

Texture:  Medium to fine grain

Luster: Waxy

Silica Fabrics / Fossils:

Patina:

Heat Treatment:  Heat treatment produces a deep red color.

Knapping:  In its raw form, flaking quality is poor, but becomes excellent with heat treatment.

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

 Crowley's Ridge Chert is associated with the Lafayette Gravel Formation.  Distribution is limited to the Crowley's Ridge landform and the Ozark Plateau of Arkansas.  The associated formation is unknown along with the origins of the chert.  It is suggested that this chert is a result of glacial till gravels deposited in Arkansas from sources further north.