Color:  Trading Run Chert is a light color ranging from a mottled white to gray, cream to yellow, and pinks with iron staining commonly present.

Texture:  Fine Grain

Luster: Waxy to satin

Translucency:  Opaque

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Trading Run Chert is thought to be associated with the Helderberg Formation of  Maryland.  Primary sources are in Allegany County, Maryland.