Rock Identifier
Possible fossilized tooth fragment (Indeterminate fossil enamel/dentine; possibly shark tooth fragment) — fossil
fossil

Possible fossilized tooth fragment

Indeterminate fossil enamel/dentine; possibly shark tooth fragment

AI-generated identification · may be incorrect

Dark gray to black, triangular and strongly worn, with a smoother glossy surface and possible layered texture; hardness likely about 5–7, but exact properties cannot be determined from the image. It appears dense, opaque, and noncrystalline at this scale.

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Physical properties

Dark gray to black, triangular and strongly worn, with a smoother glossy surface and possible layered texture; hardness likely about 5–7, but exact properties cannot be determined from the image. It appears dense, opaque, and noncrystalline at this scale.

Formation & geological history

If fossil tooth material, it formed as biological enamel and dentine mineralized during burial, commonly in marine sediments; age could range from Cretaceous to recent fossil deposits. The image is insufficient for a reliable species or age determination.

Uses & applications

Primarily a curiosity or fossil-collection specimen; complete, identifiable shark teeth may be sold as collectibles, while fragments have little industrial or jewelry use.

Geological facts

The triangular outline and dark enamel-like surface are compatible with a worn shark-tooth fragment, but could also represent dark stone or slag. A hand lens and examination of serrations, root structure, and enamel texture are needed.

Field identification & locations

Check for a distinct enamel cap, tooth-root cavity, serrations, and sediment-filled surfaces; compare with known shark teeth from coastal deposits. Common fossil-tooth regions include Florida, Morocco, and the southeastern United States.