Rock Identifier
Shark Tooth Fossil (Carcharocles / Otodus / Isurus species) — fossil
fossil

Shark Tooth Fossil

Carcharocles / Otodus / Isurus species

AI-generated identification · may be incorrect

Hardness 5 on Mohs scale (for fossilized enamel and dentin), gray to black or brown color, vitreous to dull luster, composed primarily of calcium fluoroapatite.

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Physical properties

Hardness 5 on Mohs scale (for fossilized enamel and dentin), gray to black or brown color, vitreous to dull luster, composed primarily of calcium fluoroapatite.

Formation & geological history

Formed through permineralization where minerals slowly replace the original biological material of the shark tooth buried in marine sediment over millions of years.

Uses & applications

Valued for fossil collecting, educational displays, wire-wrapped jewelry, and paleo-archeological study.

Geological facts

Shark teeth are shed continuously throughout a shark's life, resulting in abundant fossilization globally. Some megalodon teeth can exceed seven inches in length.

Field identification & locations

Found commonly in marine sedimentary deposits, river gravel beds, and coastal erosion zones. Look for the distinct triangular blade and smooth or serrated cutting edges.

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