Rock Identifier
Fossilized tooth fragment, likely mammalian (Mineralized dentine and enamel; exact taxon indeterminate from the photograph) — fossil
fossil

Fossilized tooth fragment, likely mammalian

Mineralized dentine and enamel; exact taxon indeterminate from the photograph

AI-generated identification · may be incorrect

The specimen shows a cream-white, glossy enamel-like outer layer and porous tan-brown dentine or bone interior. Enamel is about Mohs 5, while fossilized dentine is commonly 3–5; density and structure vary with mineral replacement, typically by silica or calcite.

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Physical properties

The specimen shows a cream-white, glossy enamel-like outer layer and porous tan-brown dentine or bone interior. Enamel is about Mohs 5, while fossilized dentine is commonly 3–5; density and structure vary with mineral replacement, typically by silica or calcite.

Formation & geological history

It likely formed when a tooth was buried in sediment and gradually mineralized during diagenesis, potentially over thousands to millions of years. The broad morphology is insufficient to determine species or geological age.

Uses & applications

Primarily a paleontological or collector specimen; intact diagnostic teeth can have educational and scientific value, while fragmentary pieces have little practical use.

Geological facts

The hard outer enamel contrasts with the more porous internal dentine, a useful clue distinguishing teeth from ordinary stones. The visible curved cavity may represent a pulp or root region.

Field identification & locations

Look for enamel-dentine contrast, tooth-shaped curvature, growth or wear surfaces, and porous internal tissue; avoid acid or aggressive cleaning. Fossil teeth occur worldwide in river gravels, marine sediments, caves, and desert deposits.

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