Spotted Ridge Chert
Description of Physical Characteristics:
Color:
Spotted Ridge Chert is a radiolarian chert with colors of black, green,
and red.
Texture:
Luster:
Translucency:
Silica Fabrics / Fossils:
Permian radiolarian faunas
Patina:
Heat Treatment:
Knapping:
Distribution:
Distribution Comments:
Spotted Ridge Chert is associated with the Spotted Ridge Formation of
Oregon. Primary outcroppings occur on Coyote Butte (Three Buttes),
and the southern Grindstone Terrance in Deschutes County, Oregon.
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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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