sedimentary

Fossilized Shark Tooth

Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron

AI-generated identification · may be incorrect

Hardness: 5 Mohs; Color: Tan to cream (likely modern or lightly mineralized); Luster: Vitreous/shiny (enamel); Sharp triangular shape with a distinct root and crown.

Hardness: 5 Mohs
Color: Tan to cream (likely modern or lightly mineralized)
Luster: Vitreous/shiny (enamel)

Identified April 14, 2026More sedimentary →

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Physical properties

Hardness: 5 Mohs; Color: Tan to cream (likely modern or lightly mineralized); Luster: Vitreous/shiny (enamel); Sharp triangular shape with a distinct root and crown.

Formation & geological history

Formed via permineralization where minerals from surrounding sediment replace the organic structure of the tooth over thousands to millions of years. Common in marine sedimentary environments.

Uses & applications

Primarily for educational collections, jewelry (as pendants), and as a hobbyist collectible.

Geological facts

Sharks lose thousands of teeth throughout their lives, making them some of the most common fossils found in the world. This specific one appears to be a smaller, modern or near-modern specimen due to its light color.

Field identification & locations

Identify by looking for a hard, enamelled triangular crown and a porous, wider root. Commonly found on beaches or in river beds where ancient marine deposits are eroding.