Knife River Flint
AKA: Knife River Chert,
Knife River Chalcedony, Golden Valley Chert













Natural Form:



Description of Physical Characteristics:

Color:  Knife River Flint ranges in color from a root beer, tea, coffee, or caramel brown

Texture:
 Fine grain

Luster: Dull to glossy

Translucency: Moderate to highly translucent

Silica Fabrics / Fossils:

Patina: Has a yellowish white or white patina

Heat Treatment:  Heat treatment increases the color turning it into a very dark brown or very dark gray.

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution:
Distribution Comments:
Knife River Flint is associated with the Eocene Golden Valley Formation and is primarily found in cobbles in Dunn and Mercer county, North Dakota.  It can be found through Southwestern North Dakota and into Montana and South Dakota.  Can be found in glacial til as far east as central Iowa.

 

Projectile point made from this material:



Pictures Provided By:
Mark Dalton





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References: (See Reference Page, Entry Number):

Similar Material:
Commonly made projectile point from this material:


Archaeological Context: