GemRock: Stone Identifier
Rock Identifier & Scanner
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
RockGem is an AI-powered stone identifier for rocks, crystals, minerals, fossils, and gemstones.
Found a strange stone on a walk? Picked up a shiny mineral outdoors? Curious about a crystal in your collection? Simply take or upload a photo and RockGem helps you learn what it may be, why it looks that way, and how you can check it further.
ROCK, CRYSTAL, MINERAL & FOSSIL IDENTIFIER
Take a photo or choose one from your library. RockGem analyzes the image and provides possible matches for common rocks, crystals, minerals, fossils, gemstones, and metal ores.
Each scan may include:
• Possible identification matches
• Confidence level
• Visual clues
• Uncertainty notes
• Simple field tests
• Physical properties
• Chemical formula when available
• Collection notes
NOT JUST ONE ANSWER
Stone, mineral, and gemstone identification can be difficult from a photo alone. RockGem does not pretend every result is certain. Instead, it shows likely matches, confidence, and what still needs to be checked.
This helps you understand whether your stone may be quartz, amethyst, calcite, pyrite, agate, jasper, jade, obsidian, limestone, fossil shell rock, or another common rock or mineral type.
CONFIDENCE & UNCERTAINTY
RockGem explains why a result may be likely and what cannot be confirmed from the image. A photo may show color, shape, texture, and luster, but hardness, streak, weight, magnetism, or acid reaction may still need to be tested.
This makes RockGem useful for learning, comparing, and exploring instead of relying on a single guess.
SIMPLE FIELD TESTS
Learn practical ways to check your find, including:
• Hardness test
• Streak test
• Magnetism test
• Acid reaction
• Luster
• Transparency
• Cleavage and fracture
• Weight feeling
These tests can help you compare similar-looking stones, such as pyrite and gold, quartz and calcite, or fossil limestone and ordinary rock.
STONE & CRYSTAL GUIDE
Explore useful information about rocks, minerals, crystals, fossils, and gemstones. Learn about common colors, hardness, streak, luster, chemical formulas, physical properties, and common look-alikes.
SAVE YOUR COLLECTION
Keep track of your discoveries and favorite stones. Save identification results, photos, notes, tags, and collection details in one place.
RockGem is useful for:
• Rock hounding beginners
• Crystal collectors
• Mineral lovers
• Fossil hunters
• Outdoor explorers
• Students and families
• Anyone curious about stones
WHY ROCKGEM?
RockGem is designed as a practical AI field guide. It helps you identify, compare, learn, and organize your stones while also showing the limits of photo-based identification.
Whether you are exploring outdoors, collecting crystals, checking a fossil, or learning about minerals, RockGem gives you a simple way to start.
IMPORTANT DISCLAIMER
RockGem provides AI-based educational suggestions only. It is not a professional gemological appraisal, laboratory test, certified mineral identification service, or financial valuation tool. Do not use results for buying, selling, insurance, medical, legal, or financial decisions. For valuable gemstones, jewelry, rare minerals, or important identifications, consult a qualified professional or certified laboratory.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improvements and bug fixes.
The developer, 星燃 余, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 星燃 余
- Size
- 4.4 MB
- Category
- Education
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- StoneLens Pro (Yearly) $29.99
- StoneLens Pro (Monthly) $7.99
- StoneLens Pro (Weekly) $4.99
- Copyright
- © 2026 GoodDaily All rights reserved.