Snap a photo
Take a clear photo or choose a specimen image.
AI-powered pocket field guide
Discover what’s inside every stone.
Identify rocks, crystals, minerals and gemstones from a photo—and uncover the story behind every discovery.
See how it works
PHOTO ANALYZEDOrange Calcite
Rock IdentificationIgneous, sedimentary & metamorphic
Crystal IdentificationNatural forms & visual characteristics
Gemstone IdentificationGems, birthstones & rare finds
Mineral IdentificationComposition, structure & properties
Three simple steps
From mystery stone to discovery
Found something you can’t name? A photo is all it takes to begin.
Let AI analyze it
The app examines visible color, texture, grain and crystal form.
Discover its story
Review the likely match, properties and geological details.
AI identification
Know what you found
Move from a photo to a likely identification with the context needed to keep exploring.
Rock or mineral name and type
Composition and visible characteristics
Hardness and crystal structure
Formation and origin details
Rarity, value and confidence where available
Identification is a helpful starting point. Valuable specimens may require professional testing.
A deeper field guide
More than a name
Identification opens the door to the science, structure and natural history of your specimen.
Composition
See the elements and compounds that shape a specimen.
Mohs hardness
Understand where it sits on the mineral hardness scale.
Crystal structure
Explore the geometric patterns behind crystal forms.
Formation
Learn the natural processes that created your find.
Origin
Discover where similar specimens occur in nature.
Rarity & value
Review available context without inflated promises.
Properties
Browse color, texture, grain, care and other details.
Authenticity guidance
Learn to spot the difference
Explore visual clues and authenticity tips to help you understand what to look for.
01
Look for natural variationInclusions and uneven color can be meaningful visual clues.
02
Inspect the finishSurface texture, bubbles and overly uniform clarity deserve a closer look.
Guidance supports visual learning; it cannot guarantee authenticity.
Specimen library
Explore the world of crystals & gemstones
Browse a visual world of minerals, birthstones, crystals, fossils and rare stones.
01Clear Quartz02Amethyst03Rose Quartz04Obsidian05Agate06Fluorite07Citrine08Granite
Your discoveries, organized
Build your own rock collection
Save specimens, revisit scans, mark favorites and arrange finds into collections that grow with every adventure.
Saved specimens and favorites
Searchable scan history
Create, rename and organize collections
Keep available details with each discovery
For every kind of curiosity
Made for curious explorers
Rock & mineral collectors
Keep track of specimens and the details behind each find.
Crystal enthusiasts
Explore stones, birthstones and their characteristics.
Geology students
Use a convenient field-learning companion.
Hikers & explorers
Investigate interesting stones discovered outdoors.
Teachers & learners
Make earth science more visual and engaging.
Inside the app
One find. A world of detail.
Scan, identify, learn and save—without losing the thread of your discovery.
Why Rock Identifier
Your pocket guide to the world beneath your feet
Identify from a photo
Explore mineral details
Discover gemstones
Organize favorites
Learn while exploring
Keep scan history
Common questions
Curious? Start here.
Clear answers about identifying, learning and collecting with Rock Identifier.
The app provides likely identifications from visible features. Results can vary with photo quality and specimen condition.
Get in touch
We'd love to hear about your discovery.
Questions about identifying a specimen, feedback on the app, or something else entirely—send us a message and we'll get back to you.
Email us[email protected]
Response time
We typically reply within a few business days.
Privacy first
See our Privacy Policy and Terms of Service.