RS Hill Obsidian











Natural Form:



Description of Physical Characteristics:

Color:  RS Hill Obsidian ranges from a dark gray to black with infrequent feldspar phenocrysts..
Texture:

Luster: Vitreous

Translucency:

Silica Fabrics / Fossils: 

Patina:

Heat Treatment: 

Knapping:   High quality knapping material

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
RS Hill Obsidian is associated with the San Francisco Volcanics occurring as nodules around RS Hill in the Kiabab National Forest, Coconino County, Arizona.  Geochemically identical to Sitgreaves Mountain and Spring Valley obsidian..
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:

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