Keokuk Chert

Natural Form:

Description of Physical Characteristics:

Color: Keokuk Chert ranges from a creamy white to a whitish pink with streaks or patches of whitish brown or whitish pink and reddish spots commonly present.

Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment:

Knapping:

Distribution:

Distribution Comments:
Keokuku Chert is associated with the Keokuk Formation of the St. Joes Group of Arkansas and Missouri and Oklahoma. Primary outcroppings are located around Crystal Lake in Benton County, Arkansas, Spavinaw Lake, Oklahoma, and into northwestern Arkansas, southwestern Missouri, and northeastern Oklahoma.

Projectile point made from this material:

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Archaeological Context: