Callahan Obsidian

Natural Form:

Description of Physical Characteristics:

Color: Callahan Obsidian is a homogenous black to a bluish black with no banding present..

Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment:

Knapping:

Distribution:

Distribution Comments:
Callahan Obsidian occurs as a flow along the northwestern slope of Medicine Lake Highlands, Siskiyou County, California.

Projectile point made from this material:

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Commonly made projectile point from this material:

Archaeological Context: