GemRock: Stone Identifier
GemRock: Stone Identifier is made and published by 星燃 余. AppBrain is an independent app data site and isn't affiliated with 星燃 余. The app name, icon, screenshots and description belong to 星燃 余 and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- October 9, 2026
- Size
- 4.27 MB
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Store listing
By 星燃 余, from the App StoreDescription by 星燃 余 Written by the developer, not by AppBrain. Click to read.
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/
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 4.27 MB
- Content rating
- Everyone
Technologies used by GemRock: Stone Identifier
Releases
Updates seen on the App Store- Version
- 1.0.5
- Launched
- July 2026
No changelog data
Alternatives
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About the app and developer
About GemRock: Stone Identifier
GemRock: Stone Identifier is an education app developed by 星燃 余.
User Ratings
The app has no ratings yet.
App Information
GemRock: Stone Identifier is freely available from the App Store. The app size is 4.27 MB. The latest version available is 1.0.5. The last update was on October 9, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2026.
Developer information for 星燃 余
Address:
Frequently asked questions about GemRock: Stone Identifier
Is GemRock: Stone Identifier free?
Yes. GemRock: Stone Identifier is free on the App Store.
Is GemRock: Stone Identifier still available?
Yes. GemRock: Stone Identifier is on the App Store, and the last update we saw was on October 9, 2026.
How large is GemRock: Stone Identifier?
GemRock: Stone Identifier is 4.27 MB.
Is GemRock: Stone Identifier suitable for children?
App Store rates the content of GemRock: Stone Identifier as suitable for everyone.
Who made GemRock: Stone Identifier?
GemRock: Stone Identifier was developed by 星燃 余. It is listed in the education category on the App Store.
What are the best alternatives to GemRock: Stone Identifier?
People looking at GemRock: Stone Identifier also look at these education apps: Rock Identifier: Stone Senses, Rock Identifier: RockVista ID, StoneScout: Rock Identifier, Rock Identifier & Stone Scan, TrueStone: Rock Identifier.