Rock Identifier: Gem Stone

What rock is that — and is it worth anything? Point your camera at any stone and know in seconds. Rock ID identifies rocks, minerals, gemstones and fossils from a single photo, then answers the two questions everyone actually asks: what is it, and what is it really worth? No hype. Most driveway rocks are worth a few dollars, and this app says so. IDENTIFY ANY ROCK • Snap a photo of any rock, crystal, gem or fossil (or pick one from your library) • Get the name, mineral class and formula, and the rock type • Mohs hardness, how it formed, and where it's found — US localities first • An honest estimated value range for the specimen in your hand • Care and cleaning notes, including which stones water and sunlight ruin REAL OR FAKE • The fakes that fool collectors, named and explained • Dyed howlite sold as turquoise, cubic zirconia as diamond, baked amethyst as citrine, plastic as amber, slag as meteorite • One at-home test for each, so you can check before you pay WORLD MINERAL MAP • Every rock in the guide plotted where it's actually found • Famous American sites: Crater of Diamonds, Emerald Hollow, Herkimer, Topaz Mountain, Petrified Forest • Filter by gems, crystals, birthstones or fake-prone stones • Premium: find the rock shops, gem mines and lapidaries near you TEST BENCH — IDENTIFY WITHOUT A PHOTO • The way geologists actually do it: color, scratch test, streak, magnet, luster • Answer what you can, skip what you can't, and watch the candidate list narrow • Works completely offline, in the field, with no signal FIELD GUIDE • 36 rocks, minerals, gems and fossils with full profiles • Interactive Mohs hardness scale with everyday scratch references • Collector Score: popularity, aesthetics and rarity at a glance • Birthstones, zodiac stones and the lore behind them • Eight illustrated guides: telling a real diamond, the Mohs scale, birthstones month by month, healing crystals, rock tumbling, rockhounding in the USA, the streak test, and what's inside a geode MY COLLECTION • Every scan saved with its photo, date and locality • Add your own finds and notes • See your collection's estimated total value grow PREMIUM Unlock unlimited identifications, full specimen profiles with value estimates, and the nearby rockhounding layer with Rock ID Premium. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in your App Store account settings. Note: identifications and value estimates are AI-generated guidance, not a professional appraisal. For a purchase, sale or insurance, get a certified appraisal or lab report. Terms of Use: https://identifier-proxy.vercel.app/rock/terms/ Privacy Policy: https://identifier-proxy.vercel.app/rock/privacy/ Pick up that strange rock — and finally find out what it is.