Massacre Lake / Guano Valley Obsidian
AKA: Borax Works, Catnip Mountain, Denio, Dufferna, Grassy Ranch, Guano Slough, Horse Canyon Springs, Sand Springs, South Hanging Rock, Stevens Camp, Virgin Valley, Windmill Quarry, Vya Obsidian













Natural Form:



Description of Physical Characteristics:

Color: Massacre Lake / Guano Valley Obsidian is black.

Texture:

Luster:

Translucency:

Silica Fabrics / Fossils: 

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Massacre Lake / Guano Valley Obsidian occurs primarily as cobble float along Massacre Lake / Massacre Creek in Guano Valley, at Catnip Mountain, Grassy Ranch, Guano Slough, Horse Canyon Springs, Sand Springs, South Hanging Rock, and Virgin Valley in Humboldt and Washoe counties Nevada and Lake County, Oregon.
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: