Tank Mountain Obsidian
Description of Physical Characteristics:
Color:
Tank Mountain Obsidian is black with
few to absent phenocysts and black banding occasionally present..
Texture:
Luster:
Translucency:
Silica Fabrics / Fossils:
Patina:
Heat Treatment:
Knapping:
Distribution:
Distribution Comments:
Tank Mountain Obsidian occurs as marekanites / nodules on the Yuma
Proving Grounds of the central Tank Mountains, Yuma County, Arizona.
Projectile point made from this material:
Pictures Provided By:
References: (See Reference Page, Entry Number):
Similar Material:
Commonly made projectile point from this material:
Archaeological Context:
Artifact from this source have been reported at
archaeological sites.
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