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Buyer due diligence
There is no single home test that proves a fossil genuine. A defensible review combines seller-specific photos, anatomy, preparation evidence, provenance, lawful-origin records, and—when warranted—independent physical examination.
Write down the claimed taxon, element, formation, locality, land type, collection date, restoration, prior ownership, and export history. A visually convincing fossil can still be misidentified or unlawfully sourced. Ask the seller to separate facts supported by records from opinions and unknowns.
Ask for sharp images of every side, a ruler or scale, existing breaks, the root or underside, matrix transitions, and any repaired area under ordinary diffuse and raking light. Request one new verification photo with a handwritten date or code. Reverse-image-search each public image and compare chips, cracks, shadows, and backgrounds across listings.
Image metadata can be stripped by marketplaces, messaging apps, editing software, and privacy settings. Missing EXIF data is not evidence of fraud, and GPS should not be demanded when it would expose a sensitive locality. Inconsistent image histories deserve a question, not an automatic accusation.
Compare color, texture, grain, symmetry, repeated surface patterns, crack alignment, tooth-to-root transitions, and the relationship between fossil and matrix. Molds may show seams or repeated defects; composites may show incompatible preservation or joins. Genuine fossils can also contain adhesives, consolidants, paint, and reconstruction from legitimate preparation, so the issue is identification and disclosure—not the mere presence of restoration.
Long-wave ultraviolet light can reveal differences among coatings, adhesives, fills, paint, and natural minerals, but fluorescence is not a universal pass/fail test. Materials age differently, some genuine minerals fluoresce strongly, and some modern restoration does not. Record wavelength, filters, exposure, and comparison areas, then ask a trained preparator to interpret high-value specimens.
Do not tap, scratch, burn, soak, use water displacement, or apply acetone or other solvents to a specimen you do not own or understand. These methods can damage fossils, matrix, labels, coatings, adhesives, pyrite-bearing material, and scientifically useful residues. Chemical and mechanical examination belongs in a controlled setting with appropriate safety information and conservation judgment.
Taxonomic identification, conservation, legal provenance, market appraisal, and customs compliance are different disciplines. For a high-value purchase, use an independent specialist with relevant taxon or material experience, a written scope, conflict disclosure, evidence limitations, and a report that distinguishes observation from conclusion. Remote photo review cannot replace physical examination when the stakes justify it.
The American Museum of Natural History explains that fossil preparation and conservation are specialist work performed under controlled conditions. Its resources also warn that solvents and preparation materials require health, safety, and material-specific judgment.
Jurassic Depot can require structured seller disclosures, preserve submitted records, label sample material, and flag missing evidence. A score or document upload cannot guarantee authenticity, lawful title, or future resale. Until a listing explicitly identifies an active independent review and transaction protection, buyers should treat those controls as standards—not completed verification.