Any Rock Identifier

Quick answers

How accurate is the rock and crystal identifier?

In the most recent test in October 2026 with 76 specimens, all 24 identifications marked "High confidence" (90 or above) were correct, though this is a small sample. Overall, the tool was correct about seven times in ten across all specimens, including deliberately difficult ones, and it lowers its confidence and offers alternatives when unsure. Field tests help confirm results.

Is it free?

Yes, you get 3 free identifications in total (not per day), each with a confidence level and tests to confirm it, plus the full field guide with no sign-up required. Pro plans provide up to 100 identifications a day (600 a month) plus value ranges, authenticity guidance, care tips and full reports.

What can I identify?

You can identify rocks, crystals, gemstones, minerals and fossils. For safety, the tool deliberately does not identify mushrooms, plants, wildlife or anything where a wrong answer could be dangerous.

Can AI really identify a rock from a photo?

For many common specimens, yes—color, luster, crystal habit and texture are often enough. However, some minerals look almost identical in photos, which is why the tool always provides simple at-home tests like streak, hardness, magnetism, or vinegar to confirm the result.

How do I cancel my Pro subscription?

Go to Account → Manage subscription and choose Cancel. It takes effect immediately for future charges—you won't be billed again and keep Pro until the end of the period you have paid for. For the Android app, cancel in Google Play → Payments & subscriptions → Subscriptions.