Rock Identifier
Fossilized Shark Tooth (Megalodon or Carcharocles species fragment) (Otodus megalodon / Carcharocles spp. (Apatite / Calcium Phosphate)) — fossil
fossil

Fossilized Shark Tooth (Megalodon or Carcharocles species fragment)

Otodus megalodon / Carcharocles spp. (Apatite / Calcium Phosphate)

Hardness: 5 on Mohs scale. Color: Dark brown to jet black due to mineralization. Luster: Dull to satin-like earthy luster. Crystal Structure: Non-crystalline organic matrix replaced by apatite/phosphate minerals.

Hardness
5 on Mohs scale
Color
Dark brown to jet black due to mineralization
Luster
Dull to satin-like earthy luster
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Physical properties

Hardness: 5 on Mohs scale. Color: Dark brown to jet black due to mineralization. Luster: Dull to satin-like earthy luster. Crystal Structure: Non-crystalline organic matrix replaced by apatite/phosphate minerals.

Formation & geological history

Formed through permineralization over millions of years (typically Miocene to Pliocene epochs, 2.6 to 23 million years ago) when buried in marine sediment rich in iron and phosphate.

Uses & applications

Popular among fossil collectors, beachcombers, and used in educational displays, scientific study, or custom jewelry.

Geological facts

Dark black fossil teeth often get their deep color from minerals such as iron sulfide or phosphate present in anaerobic marine sediments during permineralization.

Field identification & locations

Identified by its shiny enamel layer, serrated or smooth edges, heavy dense feel, and characteristic tooth/root morphology found along coastal beaches and riverbeds.

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