Devil Peak Obsidian
 AKA: Roach Lake (east), Umpire Obsidian (west)











Natural Form:



Description of Physical Characteristics:

Color: Devil Peak Obsidian is black.  Phenocrysts inclusion occur on material from the east of Devils Peak.
Texture:

Luster:  West material tends to be brittle and translucent, East material tends to be opaque with inclusions.

Translucency:

Silica Fabrics / Fossils:
Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Devil Peak Obsidian occurs as small pebbles or "Apache Tears" near Umpire and Picture Rock mines over a large area in Spring Mountains, Clark County, Nevada.  Two geochemical groups listed, East Devils Peak and West Devils Peak.
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: