Rock identifier · Experimental
Read the clues in a rock.
Rocks are mixtures, so we start broad. We examine grain, layering and texture and return a tentative rock family before suggesting a specific name.
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
- Grain size and shape
- Layering or banding
- Crystal visibility
Common confusions
- Weathered surfaces hide true texture
- Concrete and slag can resemble rock
What a photo can't conclude
- Mineral composition percentages
- Age
- Value
Questions
Why did I get a rock family instead of a name?
Many rocks need thin sections or chemical analysis to name precisely. A family is the defensible level from a photo.
Does location help?
Field context can help narrow possibilities. Location is optional and we remove GPS data from photos by default.
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.