Rock Identifier.io
AI rock identification tool — upload a photo, get the name, type, hardness, and value estimate in seconds.
| What is it | AI rock identification tool — upload a photo, get the name, type, hardness, and value estimate in seconds. |
|---|---|
| Pricing | Freemium |
| Free tier | Yes |
| Platform | Web Application |
| Best for | Identifying a rock found on a hike or at the beach, Learning about geology and mineral types |
| Domain registered | 2025 |
Data updated Aug. 1, 2026
What does Rock Identifier.io do?
Rock Identifier.io is a visual analysis tool that tells you what a rock is from a single photo. You upload a picture of a rock, crystal, mineral, or stone, and the tool returns the name, its classification (igneous, sedimentary, or metamorphic), its Mohs hardness, and an estimated value range. It's designed for the curious finder—whether you're on a trail, at a beach, or sorting through a collection at home. The process is straightforward and requires no prior geological knowledge, making it a handy digital field guide.
The tool works by using an AI model trained on thousands of labeled rock and mineral specimens. It analyzes visual features like color, luster, crystal structure, grain size, and fracture patterns to make its identification. To improve accuracy, the site offers practical tips, such as wetting the rock before photographing to enhance color and detail. While powerful for common specimens, the tool is upfront about its limits, noting that weathered surfaces or visually similar minerals can challenge the AI and that physical tests are needed for a definitive identification.
This tool is most useful for hobbyists, students, and anyone who picks up an interesting stone and wants a fast, educated guess about its identity and potential worth. It serves as an excellent first step before consulting textbooks or a professional geologist. The free web version offers one scan per day, and dedicated mobile apps are available for on-the-go identification.
Key features
What makes it stand outWho is Rock Identifier.io for?
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