Organic specimen (fossil)

Fossil Shark Tooth (Cretaceous white shark type)

Squalicorax (commonly known as Crow Shark)

Hardness: 5 (Apatite); Color: White, cream, or light grey (due to lack of phosphate staining); Luster: Vitreous to dull; Structure: Triangular shape with a robust root; Specific Gravity: 3.0

Hardness: 5 (Apatite)
Luster: Vitreous to dull

Identified March 19, 2026More organic specimen (fossil) →

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Physical properties

Hardness: 5 (Apatite); Color: White, cream, or light grey (due to lack of phosphate staining); Luster: Vitreous to dull; Structure: Triangular shape with a robust root; Specific Gravity: 3.0

Formation & geological history

Formed through permineralization of shark tooth enamel and dentin in marine sediments. This specimen likely dates to the Late Cretaceous period (approx. 100 to 66 million years ago).

Uses & applications

Primarily used for educational collections, jewelry (pendants), and as a popular entry-level fossil for hobbyists and children.

Geological facts

Unlike modern shark teeth which are white, fossilized teeth are usually dark due to mineral absorption. This specimen is notable for its 'white' preservation, often found in chalk deposits like those in Kansas, USA, or Morocco.

Field identification & locations

Identify in the field by the distinct 'T' or heart-shaped root and the sharp, triangular blade. Commonly found in 'bone beds' or sedimentary deposits that were once prehistoric seafloors.

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