Slater Agate / Chalcedony
Description of Physical Characteristics:
Color: Slater
Agate has a concretionary masses and a white outer coating with a sponge
like appearance with an interior that is dark gray to black agate
surrounding a milky white center with small black dendritic inclusions.
Texture:
Luster:
Translucency:
Silica Fabrics / Fossils:
Patina:
Heat Treatment:
Knapping:
Distribution:
Distribution Comments:
Slater Agate / Chalcedony is associated with the Guernsey Formation of
the Hartville Uplift and is primarily occurs near Guernsey, Platte
County, Wyoming and as cobbles in the Terrance Gravels along the North
Platte River and it's tributaries.

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: