Presley Wash Obsidian
Description of Physical Characteristics:
Color:
Presley Wash Obsidian occurs in two
variations. The first is a glassy gray to black and the second is
a sub-vitreous rhyolitic gray to grayish green or black. Sanidine
phenocrysts range from rare to abundant in the matrix.
Texture:
Luster:
Translucency:
Silica Fabrics / Fossils:
Patina:
Heat Treatment:
Knapping:
Notes:
It has been argued that this may not be
a true obsidian, but instead are rhyolites.
Distribution:
Distribution Comments:
Presley Wash Obsidian is associated with the Mount Floyd Volcanics
occurring as nodules in Presley Wash east of Round Mountain, Coconino
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:
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