Obsidian Cliff Obsidian










Natural Form:



Description of Physical Characteristics:

Color:  Obsidian Cliff Obsidian is most commonly black, but can range from black to brown, mahogany, gray or green.

Texture:  Fine grain

Luster: Vitreous to glossy

Translucency:  Most common semi translucent rarely opaque.

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 

Notes:  Not the same source as Obsidian Cliffs Obsidian from Oregon.
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
 Obsidian Cliff Obsidian is associated with the volcanic activity of Yellowstone and is located in Wyoming.  This material was highly valued and has been found in the Hopewell mounds of Ohio.  Obsidian from this source has been reported in Ohio, Ontario, Illinois, Wisconsin, and Iowa.
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: