Zaleski Chert
 Upper Mercer Chert variation
AKA: Black Flint










Natural Form:



Description of Physical Characteristics:

Color:  Zaleski Chert is glossy black and commonly has white streaks.

Texture:  Fine Grain

Luster: The luster may range from dull to waxy with a glassy vitreous when heat treated.

Silica Fabrics / Fossils:

Patina:

Heat Treatment:  Heat treatment darkens the blues and gives a glassy vitreous sheen.

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:

Zaleski Chert is a variation of the Upper Mercer Chert and is associated with the Zaleski member of the Allegheny Formation.  Primary outcroppings a of Zaleski Chert are found in Jackson and Vinton County, Ohio

Projectile point made from this material:



Pictures Provided By:
Guy McMahon
Matthew Smith
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References: (See Reference Page, Entry Number):
W23
Zaleski Flint
Similar Material:
Coshocton (Upper Mercer Flint variation)
Nellie Blue Flint (Upper Mercer Flint variation)
Upper Mercer Chert
Commonly made projectile point from this material:


Archaeological Context: