GemDetector App vs Stone Identifier Rock Scan

This app accompanies you in the identification of gemstones. It calculates the refractive index in seconds based on the measurements you enter and helps you with suggestions to identify the gemstone. The integrated library is based on gemstones and data that are also used in gemological training. Disclaimer: The results are for guidance only and do not replace a professional gemological analysis.

Point your phone at any rock, crystal, gemstone or fossil and find out what it is in seconds. Stone Identifier names your specimen from a photograph, then explains what you are actually holding: how it formed, how hard it is, what it is worth, and what it is most often mistaken for. IDENTIFY ANY SPECIMEN - Photograph a stone, or choose a picture from your library - Get a name and a confidence score in seconds - Add more photos and answer a few quick questions to narrow down a difficult specimen - Works for rocks, minerals, gemstones, crystals, fossils and meteorite candidates KNOW WHAT YOU ARE HOLDING - Colour, hardness, lustre, streak, transparency, crystal system, density and chemical formula - How the material forms in nature, and the places it usually comes from - An estimated value range, with notes on what raises or lowers it - Lookalikes side by side with the one test that separates them BUILD A REAL COLLECTION - Save specimens with your own photographs, notes, size, weight and where you found them - Mark favourites, search everything you have saved, and compare two stones side by side - Every scan is kept in your history, so you can look back at what you identified LEARN AS YOU GO - A built-in guide to rocks, minerals, gemstones, crystals and fossils - Real-versus-fake checks and field tests you can do at home - A magnet test that uses your phone's own sensor - Plain-language articles for beginners and rockhounds HONEST ABOUT WHAT A PHOTO CAN TELL YOU An identification from a photograph is an informed estimate, not a laboratory result. Stone Identifier shows its confidence, names the lookalikes it cannot rule out, and tells you which properties a camera simply cannot measure. For anything valuable, have it confirmed by a qualified gemmologist. PRIVACY BY DEFAULT No account. No sign-up. No advertising identifier. Your scans, photographs and collection notes stay in the app's private storage on your device. A photograph is sent for analysis only when you ask for an identification, and it is not kept afterwards. Made for rockhounds, beachcombers, creek and desert collectors, gem and mineral show visitors, students, teachers, and anyone who has ever picked up an interesting stone and wondered what it was. Identification needs an internet connection. The stone guide, your collection and your history all work offline.