San Felipe Obsidian











Natural Form:



Description of Physical Characteristics:

Color:  San Felipe Obsidian is black
Texture:

Luster:

Translucency:

Silica Fabrics / Fossils: 
Patina:

Heat Treatment: 

Knapping:  

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
The exact source of San Felipe Obsidian is unknown.  It occurs as marekanites and nodules.  It has been suggested that it comes from Arroyo Matomí, but many feel that the source must be further to the north of Arroyo Matomí.
Projectile point made from this material:



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References: (See Reference Page, Entry Number):

Geochemical Trace Elements:
(N= 8)
Mn = 275 +/- 21
Fe = 10,798 +/- 862
Rb = 111 +/- 11
Sr = 41 +/- 6
Y = 321 +/- 3
Zr = 147 +/- 10
Nb = 8 +/- 4
(Panich, Michelini and Shackley, 2012)
Commonly made projectile point from this material:
Archaeological Context:
Obsidian from this source has been found as far away as Riverside and San Diego counties, California and along the beaches of the Pacific.
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