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

Shark Tooth Fossil

Chondrichthyes fossil

AI-generated identification · may be incorrect

Mohs hardness around 5 due to mineralization, colors range from tan to black, vitreous to dull luster, composed mainly of fluorapatite.

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Physical properties

Mohs hardness around 5 due to mineralization, colors range from tan to black, vitreous to dull luster, composed mainly of fluorapatite.

Formation & geological history

Formed through permineralization where buried teeth are gradually replaced by minerals over millions of years, often dating from the Cretaceous to Neogene periods.

Uses & applications

Valued by fossil collectors, educational displays, and sometimes used in jewelry making.

Geological facts

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

Field identification & locations

Identify by the triangular, conical shape and enameloid sheen; frequently found in marine sediment deposits, riverbeds, and coastal erosion sites.

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