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

Fossil Shark Tooth

Chondrichthyes fossilized tooth

AI-generated identification · may be incorrect

Hardness of 5-7 on Mohs scale, brownish-tan color, vitreous to dull luster, composed primarily of fluorapatite and calcium phosphate.

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Physical properties

Hardness of 5-7 on Mohs scale, brownish-tan color, vitreous to dull luster, composed primarily of fluorapatite and calcium phosphate.

Formation & geological history

Formed through the permineralization of organic dental tissue in marine sediment over millions of years, typically dating from the Cretaceous to Miocene epochs.

Uses & applications

Prized by fossil collectors, used in educational displays, and crafted into jewelry.

Geological facts

Shark teeth are continuously shed during a shark's lifetime, making them one of the most abundant vertebrate fossils found globally.

Field identification & locations

Identify by the distinct triangular or curved blade shape and smooth enameloid surface; commonly found in riverbeds, coastal cliffs, and spoil banks.

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