Lithos: Rock Identifier

Found a stone on a trail, a beach or a shelf and want to know what it is? Lithos is a rock identifier that suggests a name from your photo. Take a picture with the camera or pick one from the gallery, and this stone identifier shows a match percentage next to its guess. As a crystal identifier it also covers gemstones, fossils, meteorites and organic gems such as amber and pearl. Lithos looks at up to 3 photos of the same stone, taken from different angles, and gives you a name plus a short description. Before it starts, the app checks the photo itself and warns you about a blurry or dark shot, with tips for taking a better one. Think of this rock identifier as a stone scanner and rock scanner for your finds, backed by a built-in guide. A gemstone identifier is only as good as the picture it gets, so the photo tips matter. The AI can be wrong, and identification needs an internet connection. When a result looks off, compare it with the guide and the lookalike notes. No stone identifier or crystal identifier replaces your own judgment. WHAT YOU GET - Photo identification with one to three photos per stone, a match percentage and a photo quality check. - A stone card with the rarity on a six-level scale and an approximate market range in US dollars. It is an estimate, not an appraisal, so treat stone value as a rough guide only. - Properties at a glance, such as chemical formula, Mohs hardness, density, colors, luster, streak, transparency, crystal system, cleavage, fracture and magnetism. - Where each stone is found, how it forms, uses, how to clean and store it, lookalikes and how to tell them apart, plus a few facts. - Other likely matches, and a way to correct the result by hand from the guide, which makes it a useful mineral identifier when the first answer is not quite right. - A searchable guide with 62 stones and filters by category and rarity, a small library of rocks and minerals. - A history of every identification with search, collections that you create yourself, sharing of a result and a stone of the day. - A magnetism detector that uses the magnetic sensor of your phone, on phones that have one. - Light and dark theme. EIGHT SHORT ARTICLES The articles cover how to photograph a stone, simple tests at home (hardness, streak, magnet, density and vinegar), meteorite or not, where to look for stones, cleaning and storing a collection, spotting a fake, the Mohs scale and what determines a stone's price. If you want to identify rocks with more confidence, the home tests are a good companion to the photo result. MOON, CHAKRAS AND ZODIAC Lithos includes a moon calendar with moon phases and the stones that tradition links to them, plus chakras, zodiac signs and planets with their traditional stones. In tradition, a stone is tied to a phase or a sign, and it is believed to carry a certain meaning. This is not medical advice. SAFETY Some stones are toxic. Safety warnings about them are visible to everyone, also in the free version. WHO IT IS FOR Lithos suits hikers, beachcombers, hobby collectors and anyone who keeps a rock collection on a windowsill or in a drawer. Whether you pick up a pebble by a river or inherit a box of crystals, the stone identifier and the guide help you put a name to it. Use it as a crystal identifier for the pieces on your shelf, then keep each find in a personal collection. FREE AND FULL VERSION The free version gives you 3 identifications in total, the name of the stone with a short description, your history, the list of stones in the guide, sharing and one article. A single one-time in-app purchase unlocks everything else: unlimited identifications, the full stone card, other matches and corrections, collections, the tools and all articles. There is no subscription. There are no ads, and you do not need an account. GET STARTED Open Lithos, take a photo of your stone and see what the rock identifier suggests. Your first three identifications are free.