Fossilized Shark Tooth (Otodus obliquus)

Physical Properties

Hardness: 5 (Mohs scale); Color: tan, brown, or white enamel with beige root; Luster: Vitreous/shiny enamel, dull root; Crystal structure: Hexagonal (mineral composition); Specific gravity: ~3.0

Formation & Geological History

Formed through permineralization where hydroxyapatite in the tooth is replaced by minerals like fluorapatite over millions of years. This specimen dates to the Paleocene or Eocene epochs (approx. 40-60 million years ago).

Uses & Applications

Primarily used for educational scientific collection, jewelry (pendants), and decorative home displays.

Geological Facts

Otodus obliquus was a massive prehistoric mackerel shark and is considered a likely ancestor to the famous Megalodon. These teeth are often found in Moroccan phosphate mines.

Field Identification & Locations

Identify by the sharp, triangular enamel blade and the thick, stony root. Common in the Ouled Abdoun Basin of Morocco. Field collectors should look for the distinct glossy sheen against sedimentary matrix.

Identified on: 4/28/2026

Mode: Standard