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

Fossil Shark Tooth

Chondrichthyes (Class)

AI-generated identification · may be incorrect

Hardness varies (around 5-7 depending on mineralization), typically tan, brown, gray, or black, luster can range from dull to vitreous depending on preservation, triangular or asymmetrical shape.

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Physical properties

Hardness varies (around 5-7 depending on mineralization), typically tan, brown, gray, or black, luster can range from dull to vitreous depending on preservation, triangular or asymmetrical shape.

Formation & geological history

Formed through the process of permineralization where the original organic material of the shark tooth is replaced by minerals over millions of years.

Uses & applications

Used in fossil collecting, educational displays, and jewelry making.

Geological facts

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

Field identification & locations

Found commonly in gravel pits, riverbeds, and coastal areas exposed to ancient marine deposits. Identify by the characteristic triangular shape, smooth enamel, and sometimes a visible root structure.