Mount Edgecumbe Obsidian










Natural Form:



Description of Physical Characteristics:

Color:  Mount Edgecumbe Obsidian ranges from a dark gray to black.   References also mention a glassy black dactite with reddish brown and flow banding occurring.

Texture: 
Luster: 

Translucency:

Silica Fabrics / Fossils: 
Patina: 

Heat Treatment:

Knapping:

 


 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Mount Edgecumbe Obsidian occurs around Mount Edgecumbe, Kruzof Island, Alaska.  Primary sources occur along the west northwest rim of Mount Edgecumbe.
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: