Bull Creek Obsidian
 AKA: AZ Unknown B











Natural Form:



Description of Physical Characteristics:

Color: Bull Creek Obsidian is black with few to absent phenocysts and black banding occasionally present.
Texture:  Fine grain

Luster: Vitreous

Translucency: 

Silica Fabrics / Fossils: 

Patina:

Heat Treatment: 

Knapping:  

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Bull Creek Obsidian is associated with the Kaiser Spring Volcanics and primarily occurs as marenites / nodules (up to 10 cm) with the primary source located at the rhyolite domes at the head of Bull Creek and secondary source along Bull Creek in western Yavapai County, Arizona.
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:
Obsidian from this source has been found at several archaeological sites.
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