Color:  Fossil Hill Chert ranges in color from off white to bluish white.  Hues include red, pink, yellow and green.  Speckled with oxides and quartz.

Texture: Medium to very fine grain

Luster: Waxy to vitreous

Silica Fabrics / Fossils: Macro fossils include brachiopods, bryozoans, colonial corals echinoderms, and stromatoporoids.  Micro fossils include navifusa and polyedryxium are present

Patina: When weathered it becomes white and may have staining of shades of yellow or red.

Heat Treatment: 

Knapping: 

Notes: Fossil Hill Chert can be distinguished from Onondaga Chert by the presences of Hapsidopalla in Onondaga Chert.  It is similar in characteristics to Bois Blanc Formation Chert, however, Fossil Hill Chert has Navifusa and Polyedryxium which is absent in Bois Blanc Formation Chert.  

 

 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Fossil Hill Chert is associated with the Fossil Hill Formation Limestone with primary sources being located in Redwing Ontario.  Primary outcroppings are found in Bruce and Grey counties, Ontario.  Found into New York.