Color:  Kaumajet Jet Black Chert is a dark black, small veins of quartz may be present.

Texture:  Fine grain

Luster: Dull to waxy

Translucency:  Opaque

Silica Fabrics / Fossils:

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Distribution Comments:

Kaumajet Chert is associated with the lower volcanic formation of the Mugford Group of Labrador (most likely the Sunday Run Formation which produces black chert).  Primary outcroppings is at Anchorstock Harbour in Northern Labrador, Canada

Formations of the Mugsford Group, in ascending order, are; Sunday Run Formation, Cod Island Formation, Calm Grove Formation, Shark Gut Formation, and Finger Hill Formation.