Stone identifier · Experimental
Make sense of an unfamiliar stone.
For tumbled, polished, ornamental or found pieces. We ask whether the surface is polished or coated, and keep manufactured materials on the list of possibilities.
Add 1–5 photos of one specimen
JPEG, PNG or WebP · up to 10 MB each · 30 MB per scan
Optional details you know first-hand
Tell us what you measured yourself, what someone told you, and what a report says — we keep these separate.
Privacy: photos are used only for your scan, location data is removed before upload, and nothing is used for training unless you opt in. Guest scans are deleted after 24 hours.
Features that may help
- Surface finish
- Pattern and colour
- Translucency against light
Common confusions
- Dyed stones
- Glass and resin
- Reconstituted material
What a photo can't conclude
- Dye or coating
- Origin
- Value
Questions
My stone came from a shop label — is that reliable?
Trade names vary. We treat shop labels as user claims, not evidence.
Can you tell if it's dyed?
Sometimes colour concentrations are suggestive, but dye usually can't be confirmed from photos.
Should I scratch, heat or apply acid to test it?
No. Destructive home tests can damage the item and still mislead. Record what you can see and seek qualified testing when the answer matters.