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Free Stone Identifier

Identify any stone instantly with our free online stone identifier. Powered by AI — completely free, no sign-up required.

About This Tool

Whether you found a smooth river stone, a landscaping rock, or a mystery pebble, our AI can tell you exactly what it is. Learn about its composition, hardness, and geological formation.

📸 Tips for Best Results

✓Take the photo in natural lighting
✓Show a clean surface, wash off dirt if possible
✓Show a fresh break if available
✓Multiple angles improve accuracy

🧠 Interesting Facts

•Stones are simply rocks that have been modified by natural processes or human activity
•Many stones found in rivers are rounded by water erosion over thousands of years
•Some stones are actually fossilized wood
•Prehistoric humans used stones as their primary tools

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