Stone Identifier: Free Photo Identification
Upload or snap a picture of any pebble, tumbled stone, or decorative rock. Find out what stone is this in seconds.
Drop your rock photo here to identify for free
Snap or upload any rock, crystal, mineral, or stone. Our AI analyzes texture, color, and cleavage instantly.
What Stone Is This? Instant Photo Stone Identification
If you found a smooth beach pebble, a decorative landscaping stone, or a polished pocket piece and wondered what stone is this, our online stone identifier provides fast visual recognition. Natural stones are tumbled and rounded by river action, ocean waves, or lapidary rock tumblers, often disguising original cleavage lines. Our AI evaluates subtle patterns, microcrystalline banding, color saturation, and surface texture to identify your stone accurately.
What Kind of Stone Is This? Common Stone Varieties
To understand what kind of stone is this, inspect whether your stone is a sedimentary pebble (such as rounded sandstone or chert), an igneous stone (like volcanic basalt or polished granite), or a microcrystalline silica stone like jasper and agate. Tumbled decorative stones commonly sold in rock shops include tiger's eye, hematite, sodalite, carnelian, and green aventurine.
How to Tell If a Stone Is Real (Vs. Glass or Plastic)
Thermal Temperature Check
Genuine natural stones have high thermal conductivity and feel noticeably cool to the touch. Colored plastic, acrylic, or resin stones warm up to body temperature immediately.
Hardness & Scratch Resistance
Natural quartz-based stones (jaspers, agates, chalcedony) have a Mohs hardness of 6.5 to 7 and will easily scratch window glass without sustaining scratches from a pocketknife.
Air Bubble Inspection
Look into the stone with a 10x jeweler loupe. Artificial glass stones contain round spherical bubbles; real geological stones contain crystal grains, banding, or mineral veins.
Weight & Specific Gravity
Real stones feel pleasantly dense in your palm. Fake resin stones feel unusually light, while glass marbles have uniform mass without natural mineral heft.
Common Stone Specimens
| Specimen Name | Category | Key Identification Trait |
|---|---|---|
| River Jasper | Microcrystalline Quartz | Opaque red, yellow, or brown with smooth waxy texture; Mohs 7. |
| Beach Basalt | Extrusive Igneous | Dark grey or black, fine-grained, heavy; often pitted with micro-vesicles. |
| Water-Worn Chert | Sedimentary Silica | Conchoidal fracture edges, smooth dull-to-waxy luster, sparks with steel. |
| Tiger's Eye | Silicified Crocidolite | Golden-brown chatoyant silky bands that shift when tilted in light. |