Algal Chert
Tiger Chert variation










Natural Form:



Description of Physical Characteristics:

Color:  Algal Chert is streaked ranging from most commonly a light gray to light brown, less commonly a very light gray to black or a very light brown to a very dark brown.

Texture:


Luster:

Translucency: Opaque

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Algal Chert is associated with the Bridger Formation of Wyoming and is primarily found as nodules in Sand Wash Basin of Colorado and Wyoming.
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: