Identifying a rock has never been easier. One photo is enough: Geode recognizes rocks, crystals, minerals and gemstones, and explains what you are holding. And when you have nothing to photograph, there is a catalog of 2,500 rocks and minerals to browse.

THE CATALOG: 2,500 ROCKS AND MINERALS

Browse the whole reference catalog without taking a single photo. Look up a stone by name, or let the filters do the work: color, luster, transparency, crystal habit, cleavage, crystal system, Mohs hardness, chemical class, how rare it is.

The filters also cover the tests you can run yourself: what fizzes in vinegar, what sticks to a magnet, what glows under a UV light. Enough to turn "a green rock, hard, not magnetic" into a short list of minerals.

The catalog downloads once, then works offline — on a trail, on a beach, at the bottom of a quarry.

ROCK SCANNER: IDENTIFY ANY STONE FROM A PHOTO

Found a stone on a trail, a beach, a construction site? Bought a crystal at a flea market without knowing what it is? Take a picture. Geode analyzes shape, color, texture, luster and crystal habit to suggest a mineral identification, with its family and the features that define it. The rock identifier works on rough field finds, tumbled stones, polished cabochons and cabinet specimens alike.

YOU SEE WHAT WAS OBSERVED

Geode does not just drop a name on you. It shows you what it read in your photos — color, luster, transparency, habit — and then what matches, mineral by mineral, in the catalog. When two stones look too much alike, it asks a few simple questions: does it scratch glass, does it fizz in vinegar. Your answers decide it, and "I don't know" costs you nothing.

A FULL PROFILE FOR EVERY MINERAL

For each stone: name, mineral family, how it formed (igneous, sedimentary, metamorphic, hydrothermal), Mohs hardness, streak, luster, possible colors and varieties, where in the world it is found, and the criteria that separate it from rocks that look just like it. Enough to start recognizing your stones without the app.

CRYSTAL MEANINGS AND TRADITIONS

Every crystal carries a story. Geode gathers the properties traditions have attributed to stones, their symbolism, their associated chakras and their place in folklore: rose quartz, amethyst, obsidian, labradorite, citrine, selenite, malachite, lapis lazuli, tiger's eye, moonstone and hundreds more. A cultural reading, kept clearly separate from the geological one.

YOUR ROCK COLLECTION

Keep the stones that matter. Add your own photos to them, write down where you found one, what it cost, who gave it to you. Your scans stay in a separate history of their own, and your collection follows you to any phone you sign in on. Every week a new stone to discover joins the reading.

WHO IT IS FOR

• Anyone who picks up rocks without knowing their names
• Crystal and gemstone collectors
• Rockhounds and mineral collectors, beginner or experienced
• Hikers, beachcombers and curious kids getting into geology
• Earth science and geology students

WHAT GEODE IDENTIFIES

Quartz and its varieties (rose quartz, amethyst, citrine, smoky quartz), agate, jasper, obsidian, granite, basalt, marble, limestone, flint, pyrite, mica, feldspar, calcite, fluorite, malachite, labradorite, selenite, opal, turquoise, garnet, tourmaline, and hundreds of other rocks and minerals.

THE LIMITS, HONESTLY

Photo identification does not replace analysis. Some minerals look identical and require physical tests: hardness, streak, density, acid reaction. Geode gives you a reasoned lead and the evidence to verify it, not an expert verdict. For a valuable stone, consult a certified gemologist.

Crystal properties are presented as cultural and traditional beliefs. They are not medical advice and do not replace any treatment or consultation.