Color: Brushy Basin Chert is banded, white in color with pastel shades of tan, pink, green, and orange with banded or swirls of darker shades of brown, reddish brown, or gray.

Texture:  Smooth, fine grain

Luster: Waxy to vitreous

Translucency:  Opaque

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Brushy Basin Chert is associated with the Brushy Basin Member of the Morrison Formation.  It has primary sources on the San Juan River valley, near the Four Corners region.  Outcroppings of the Brush Basin Member have been reported in the Zuni Mountains of New Mexico.