Railroad Point Obsidian / Vitrophye











Natural Form:



Description of Physical Characteristics:

Color: Railroad Point Obsidian / Vitrophye is black.
Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Railroad Point occurs as float obsidian  from the Dufurrena Grande /Thousand Springs / Virgin Valley sources washed into Thousand Springs Valley.  Tertiary volcanism also produced nodular vitrophyre.  As many as four different geochemical groups have been identified in this area in Humboldt County, Nevada.
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: