Gorgeous pyritized 4.47 Serrated Megalodon Fossil Tooth, Gray and Black

  
This gorgeous 4.47 gray and black specimen has pyrite loaded into the cracks of the bourlette. It was found while diving in the Atlantic and has a well preserved tooth, bourlette, blade and serrations, although there is some minor damage on the tip.

I chose this one specifically because of the unique pyrite that formed in the bourlette, and while it's difficult to capture in the photos, it's striking in person.