Color:  Trout Creek Chert / Jasper ranges from a dusky red to a yellowish brown.  Inclusions of black, green, or red, or lines of green to black forming intricate patters are commonly present..

Texture:  Fine grain

Luster: Waxy to glossy

Translucency:  Opaque

Silica Fabrics / Fossils:

Patina:

Heat Treatment:  Heat treatment produces a bright orangish color.

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Trout Creek Chert / Jasper was originally mapped as belonging to the Manitou Formation (Ptarmigan Chert) but has recently be attributed to the Fremont Formation (Fremont Chert) of Colorado and occurs at the Trout Creek Quarry in Chaffee County, Colorado.