How to Tell If a Shark Tooth Is Real
No single visual test proves that a shark tooth is real. Check the crown, root, surface, serrations, and seller information together before you buy.
Crown and root transition
Look for a natural transition between the enamel crown and the porous root. Mold seams, sharp material changes, or repeated surface patterns can point to a cast replica.
Wear and small irregularities
Real teeth often show uneven wear, chips, or mineral staining. A perfect surface is not proof of a fake, but identical marks across several teeth are a warning sign.
Color variation
Fossil teeth can show gradual changes in color caused by the surrounding sediment and minerals. Uniform paint, color pooled in scratches, or color that rubs off needs closer inspection.
Serrations and edges
Use magnification to check whether serrations continue into the crown naturally. Cast teeth may show rounded details, repeated notches, or a seam along an edge.
Surface under magnification
Inspect the tooth at 10x magnification. Bubbles, mold seams, sanding marks, or a repeated artificial texture can reveal resin, plaster, or carved material.
Common Signs of a Replica Shark Tooth
Replicas can be sold honestly as models or souvenirs. The problem starts when a seller presents one as an authentic modern or fossil tooth.
Replica materials
Common materials include:
- Resin or plastic: may show bubbles, mold seams, or rounded details
- Plaster: can have a chalky, uniform surface
- Dyed modern teeth: may show artificial color in cracks or around the root
- Carved stone: can show tool marks or grain that crosses the crown and root
Seller information
- No find location or ownership history
- Several rare teeth with identical chips or stains
- Reluctance to provide detailed photos
- No return policy or authenticity guarantee
What the app can check
The Shark Tooth Identifier app can suggest a species from a photo and show a profile for comparison. It does not certify authenticity or replace a hands-on examination.
Found a tooth like this?
Snap a photo and get a likely species match, age and rarity in seconds.
Download on theApp Store
Check a Shark Tooth Without Damaging It
Start with checks that do not scratch, heat, or otherwise alter the specimen.
Use magnification
At 10x magnification, inspect:
- Serrations and natural wear
- Surface texture and pore structure
- The transition between crown and root
- Bubbles, seams, paint, or tool marks
Ask for complete photos
Request sharp photos of both sides, the root, the tip, and the cutting edges. Compare the details across every image.
Check documentation
Useful seller documentation includes:
- Find location or provenance when known
- Clear photographs showing all angles
- Accurate measurements and weight
- A written authenticity statement and return policy
Use an independent expert for valuable teeth
If the purchase is expensive or the visual evidence conflicts, ask an experienced fossil dealer, museum professional, or paleontologist to inspect it in person.
