Color:  Spanish Diggings Agate is a mottled and banded red gray and red.

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.