Callahan Obsidian










Natural Form:



Description of Physical Characteristics:

Color: Callahan Obsidian is a homogenous black to a bluish black with no banding present..

Texture:


Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Callahan Obsidian occurs as a flow along the northwestern slope of Medicine Lake Highlands, Siskiyou County, California.
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: