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Rock Identifier
Upload a photo of a rock or mineral and find out its likely type, how to tell it apart and simple tests you can do at home.
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Picked up a rock on a hike, a beach or in the garden and want to know what it is? Upload a photo and this rock identifier names the most likely rock or mineral, tells you whether it is igneous, sedimentary or metamorphic, and points to the exact features that led there. You also get look-alikes and three simple tests to confirm it yourself.
How the rock identifier works
The AI reads the colour, grain size, layers, crystals, shine and surface texture visible in your photo. It names its best guess, says how sure it is and lists the clues so you can check them against the rock in your hand.
Get a better answer from the photo
Wipe off dirt, shoot in daylight on a plain background, and fill the frame. If you can, add a second photo of a fresh broken face or the underside, since weathered outsides hide the real colour and grain. Put a coin next to the rock for scale.
Tests that really narrow it down
A photo can only go so far. The tool suggests safe tests chosen for your rock: streak on unglazed tile, a scratch test with a coin or steel nail, a magnet and a drop of vinegar. Add what you find in the notes box and run it again for a surer answer.
What it will not tell you
It will not put a price on a stone or claim that a crystal has special powers. It cannot confirm a meteorite or a gemstone from a picture; for those, take the stone to a local museum, a rock club or a geology department.
Questions
Is the rock identifier free?
Yes, it is free to use. Runs are paced rather than sold, so heavy use in a short window can mean a short wait.
What photo works best?
A sharp, well-lit close-up on a plain background, with dirt wiped off. A second photo of a fresh broken face helps a lot.
Can it tell me what a rock is worth?
No. It gives the likely type and clues but never a price. For value, ask a dealer or a local geology club.
Can it identify crystals and gemstones?
It can name likely minerals from the photo, but a picture cannot confirm a gemstone. A gem lab or a dealer can test it for sure.
Is it safe to do the home tests?
The tests it suggests are low risk, such as a streak, a scratch and a magnet. Never taste a rock, and wear eye protection if you break one.
Can I find out if my rock is a meteorite?
A photo cannot confirm it. If it is unusually heavy, attracts a magnet and has a dark crust, contact a museum or a university geology department.