Rock Identifier
Shark Tooth Fossil (Chondrichthyes fossil) — fossil
fossil

Shark Tooth Fossil

Chondrichthyes fossil

AI-generated identification · may be incorrect

Hardness is variable depending on mineralization (typically 4-5 on Mohs scale), colors range from black and brown to gray, with a vitreous to dull luster and distinctive triangular serrated shape.

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Physical properties

Hardness is variable depending on mineralization (typically 4-5 on Mohs scale), colors range from black and brown to gray, with a vitreous to dull luster and distinctive triangular serrated shape.

Formation & geological history

Formed through the process of permineralization where buried biological teeth are gradually replaced by minerals over millions of years.

Uses & applications

Used widely in paleontology, educational displays, jewelry, and as a popular item for fossil collectors.

Geological facts

Sharks lose thousands of teeth in a lifetime, making their teeth among the most common vertebrate fossils found worldwide.

Field identification & locations

Easily identified by their characteristic triangular or dagger-like shape and enameloid sheen; commonly found in riverbeds, coastal erosion zones, and ancient marine sediment layers.

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