Minerai: Rock Mineral Gem ID

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Content rating
Everyone
10+
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Content rating
Everyone
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About this app

Minerai is your pocket geologist — an AI-powered rock, mineral, and gemstone identifier built by a geology engineer. Point your camera at any stone and discover what it is in seconds, completely offline.

📷 IDENTIFY WITH YOUR CAMERA
Aim your camera at any rock, mineral, crystal, or gemstone and get instant AI identification. Our hierarchical deep-learning model works in three tiers — first Rock vs Mineral vs Gemstone, then the specific type from 180+ categories — for more accurate results than a single flat model.

✨ KEY FEATURES
• AI Identification — On-device TFLite model that works fully offline. No internet, no sign-up, no photo uploads.
• 180+ Types — Rocks, minerals, gemstones, crystals, fossils, and soil types.
• Value Estimation — Estimated market value with quality tiers (Low / Medium / High) for collectors and prospectors.
• GPS Tagging — Mark exactly where you found each specimen on an interactive map.
• Collection Manager — Save finds with photos, location, and date, and browse your personal collection.
• Prediction Chart — See confidence scores and alternative matches, not just a single guess.
• Dark & Light Themes — A clean, modern interface, easy on the eyes day or night.

🔎 WHAT CAN IT IDENTIFY?
Quartz, amethyst, obsidian, agate, quartzite, granite, basalt, limestone, marble, calcite, pyrite, feldspar, mica, sandstone, slate, gneiss, and hundreds more rocks, minerals, and crystals from around the world.

👥 BUILT FOR EVERYONE
• Geologists and geology students
• Rock, mineral, and crystal collectors
• Treasure hunters and prospectors
• Hikers, campers, and nature lovers
• Teachers and students — a hands-on earth-science learning tool
• Anyone curious about the stones beneath their feet

🌍 18 LANGUAGES SUPPORTED
Minerai is fully translated into 18 languages:
Turkish, English, German, Arabic, Bengali, Chinese, Dutch, Finnish, French, Hindi, Spanish, Swedish, Italian, Japanese, Portuguese, Russian, Urdu, and Greek.

🔒 PRIVACY FIRST
All image processing happens on your device. No photos are ever uploaded to a server, and your collection data stays local and private.

Minerai — know every rock beneath your feet.
Updated on
Jun 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

What’s new

Welcome to Minerai - your offline rock, mineral and gemstone identifier.

- Point your camera at any stone and identify rocks, minerals and gemstones in seconds, fully offline
- Detailed geology info: hardness, crystal system, formation and common uses
- Value estimate for every find, with collector and raw value ranges
- Build a personal collection with photo, date and GPS location for each discovery
- See all your finds on an interactive map
- Available in 18 languages
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
ENDER RAGIP ARSLAN
isguender@gmail.com
ACARLAR MAHALLESI SEHITLER YOLU CD. NO:206 K:1 D:2 TURGUTLU MANİSA BOLOVA 45410 Turgutlu/Manisa Türkiye

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