Rock Identifier
Fossil Shark Tooth (Carcharhiniformes fossil (likely Carcharhinidae family)) — fossil
fossil

Fossil Shark Tooth

Carcharhiniformes fossil (likely Carcharhinidae family)

Hardness: 5 (Mohs scale), Color: Creamy white to beige, Luster: Vitreous to dull, Structure: Narrow triangular blade with a distinct root base, Specific Gravity: 2.8-3.1

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Physical properties

Hardness: 5 (Mohs scale), Color: Creamy white to beige, Luster: Vitreous to dull, Structure: Narrow triangular blade with a distinct root base, Specific Gravity: 2.8-3.1

Formation & geological history

Formed through permineralization where hydroxyapatite in the tooth is replaced by minerals from marine sediment. Typically found in Miocene or Pliocene deposits (5-23 million years old).

Uses & applications

Used for educational specimens, jewelry (wire-wrapped pendants), and as a collectible item for amateur paleontologists.

Geological facts

Unlike modern white teeth, fossil teeth are often colored by the surrounding sediment; however, beach-worn or bleached specimens can appear very light. Sharks can lose tens of thousands of teeth in a lifetime.

Field identification & locations

Identified by its sharp triangular shape and the presence of a bulbous or flat root area. Commonly found by beachcombing or sifting in areas like Venice Beach, Florida, or the Myrtle Beach coastline.

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