Casa Diablo Obsidian
 AKA: Lookout Mountain, Prospect Ridge (Hot Creek), Sawmill Ridge Obsidian











Natural Form:



Description of Physical Characteristics:

Color: Casa Diablo Obsidian is black.
Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Casa Diablo Obsidian occurs as outcroppings and nodules on Lookout Mountain about 5 miles south of Mono Lake / Lee Vining west of Crowley Lake, Mono County, California.  Also occur on Prospect Ridge and Sawmill Ridge.  Lookout Mountain, Prospect Ridge, and Sawmill Ridge are all separate geochemical groups.  The most impressive outcropping is a 500 foot hill of obsidian along Hot Creek.
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:
Numerous prehistoric quarries have been located for this source.