Mono Glass Mountain Obsidian












Natural Form:



Description of Physical Characteristics:

Color: Mono Glass Mountain Obsidian ranges from gray to black with a "woody grain" appearance.  Reddish brown streaking also occurs (mahogany obsidian).

Texture:


Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: Fractures choncoidally

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Mono Glass Mountain Obsidian outcrops near the east rim of Mono Basin between the Casa Diablo and Truman Meadows sources, Mono 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:
Prehistoric quarries have been located at this obsidian source.