Color:  Spanish Diggings Chert is mottled and ranges from a brown to gray.

Texture: 

Luster:

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Spanish Diggings Quartzite is associated with the Fall River and Lamoka Formation of the Inyan Kara Group of Wyoming and South Dakota.  Primary outcroppings occur Glendo Reservoir, Goshen County, Wyoming.