White River Group Silicate
 Generic type










Natural Form:



Description of Physical Characteristics:

Color:  White River Group Silicate ranges in color from translucent light to medium gray, to a light brown, pink, blue or lavender with opaque white inclusions, splotches, or mottling.  opaque white to translucent lavender with specks of blue and pink.

Texture:

Luster:

Translucency:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
White River Group Silicate is a generic type that includes all formations within the White River Group.  Specific type include Flattop Chalcedony, West Horse Chert, Sentinel Butte Chalcedony, and scenic chalcedonies.  The White River Group extends from Wyoming,  North Dakota, South Dakota, Nebraska, eastern Montana and northeastern Colorado.
Projectile point made from this material:



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References: (See Reference Page, Entry Number):

Similar Material:
Commonly made projectile point from this material:
Archaeological Context: