sedimentary

Fossilized Shark Tooth

Fossilized elasmobranch tooth (Apatite/Calcium Phosphate)

AI-generated identification · may be incorrect

Hardness: 5 (Mohs scale), Color: Jet black to dark grey, Luster: Vitreous to dull, Crystal structure: Hexagonal (original mineral), Shape: Triangular with a root and crown

Identified June 15, 2026More sedimentary →

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Physical properties

Hardness: 5 (Mohs scale), Color: Jet black to dark grey, Luster: Vitreous to dull, Crystal structure: Hexagonal (original mineral), Shape: Triangular with a root and crown

Formation & geological history

Formed through permineralization where minerals like silica or phosphate replace the organic matter over millions of years. Most common specimens range from 5 to 65 million years old (Miocene to Paleocene epochs).

Uses & applications

Predominantly used for collector items, educational specimens, and jewelry (pendants). Used in paleontological research to track ancient marine ecosystems.

Geological facts

Shark teeth are the most common shark fossils because sharks lose thousands of teeth throughout their lives. The dark color often comes from absorbing minerals like phosphorus or manganese from the surrounding sediment.

Field identification & locations

Identify by its distinct triangular blade and darker-colored root area. Often found on beaches after storms or in riverbeds in coastal regions like Florida, the Carolinas, and Morocco.