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

Shark Tooth Fossil

Chondrichthyes tooth

AI-generated identification · may be incorrect

Hardness 5 on Mohs scale due to mineralization, brown to grey color, enameloid outer layer with serrated edges or triangular shape, specific gravity around 2.5 to 3.0.

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Physical properties

Hardness 5 on Mohs scale due to mineralization, brown to grey color, enameloid outer layer with serrated edges or triangular shape, specific gravity around 2.5 to 3.0.

Formation & geological history

Formed through permineralization where original organic material of ancient shark teeth is replaced by minerals like silica or phosphate over millions of years.

Uses & applications

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

Geological facts

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

Field identification & locations

Found in marine sedimentary deposits and river gravels; easily identified by the distinct triangular shape, enamel sheen, and sometimes serrated cutting edges.

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