Rock Identifier: Gem Stone
Crystal Mineral Value Scanner
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Snap any rock, crystal or gem and get its name, hardness and honest value. Spot the fakes, explore the world mineral map, and identify by hand with the Test Bench.
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
• 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
CREDITS
Packs of 10 or 20 credits. 1 credit unlocks the full result of a scan. No subscription, no auto-renewal. Maps, guides and all other features are free.
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Credit packs: pay only for the results you want. Maps, guides and tools are now free.
The developer, Alec Bogdan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Alec Bogdan
- Size
- 18.5 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 20 Credits $7.99
- 10 Credits $4.99
- Premium Monthly $9.99
- Premium Weekly $9.99
- Premium Annual $39.99
- Copyright
- © 2026 Alec Bogdan