Sierra Fresnal - West Obsidian










Natural Form:



Description of Physical Characteristics:

Color:  Sierra Fresnal - West Obsidian is black.
Texture:

Luster

Translucency:

Silica Fabrics / Fossils: 

Patina:

Heat Treatment:

Knapping:  

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Sierra Fresnal - West Obsidian occurred in the west coalesced rhyolite dome near Sierra Fresnal.  Marekanites have not been found in-situ at the dome, but below the dome eroding towards Arroyo Seco south of Nuevo Casas Grandes and at Lago Fredrico, Chihuahua, Mexico.  Sierra Fresnal West and Sierra Fresnal East have different geochemical signatures.
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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