Glass Mountain Obsidian
 AKA: Crater Flow, Glass Flow, Grouse Hill, Little Glass Flow Obsidian









Natural Form:



Description of Physical Characteristics:

Color: Glass Mountain Obsidian ranges from a black to gray with banding commonly present

Texture: Fine grain

Luster: Glossy

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping:  High quality flaking quality

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Glass Mountain primarily occurs on Glass Mountain, south Glass Mountain, and east Glass Mountain on the Medicine Lake Highlands, California.
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: