AI-powered field geology

Identify any rockfrom a photo.

Snap a photo of any rock, mineral, gem, or crystal — Rock Identifier names it in seconds and explains how it formed, what it’s made of, and where it came from.

No download? Try the free online identifier

4.7on the App Store

Rock Identifier app showing an identified specimen

Live from the field

Recent identifications

A rolling collection of rocks, minerals, and gems just identified by the Rock Identifier community.

Browse all

Rounded quartz pebble

Quartz, SiO₂ (likely massive milky quartz)

mineral

Granite pebble

Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica

igneous

Weathered granite pebble

Granite, composed mainly of quartz, feldspar, and mica

igneous

Pink-orange granite

Granite, typically quartz + feldspar + mica

igneous

Milky quartz

Quartz, silicon dioxide (SiO₂)

mineral

Weathered granite (likely)

Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica

igneous

Quartzite

Quartzite, composed predominantly of quartz (SiO₂)

metamorphic

Milky quartz

Quartz (silicon dioxide, SiO₂)

mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

mineral

Pink granite

Granite, chiefly quartz, potassium feldspar, and plagioclase, with minor dark minerals such as biotite

igneous

Pink granite

Granite, a coarse-grained intrusive felsic rock composed chiefly of quartz, feldspar, and mica

igneous

Quartz geode fragment

Quartz (SiO₂), likely a small drusy quartz-lined cavity in silica-rich host rock

mineral

What you get

A pocket geologist, always with you

Identify a rock, then explore everything about it — properties, formation, and your own notes — all in one app.

Photo identification

Point your camera at any rock and get an answer in seconds — no field guide, no guesswork.

Properties & classification

Common name, scientific name, physical properties, and category — the data a geologist would write in a field notebook.

Formation & history

Trace each specimen back through time: how it formed, when, and which geological forces shaped it.

Field notes

Add your own notes to any identification — conditions, observations, or anything you want to remember.

Personal collection

Build a private cabinet of every rock you’ve identified, with your own notes attached.

Community gallery

Browse rocks identified by other rockhounds — and share your own discoveries publicly or keep them private.

How it works

From photo to rock identification in seconds

Step 01
Take a photo
Capture the specimen in natural light. A clear shot of texture and color is all the AI needs.
Step 02
AI does the geology
Our model reads mineral, texture, and color signatures to identify what you’re looking at.
Step 03
Read the report
Get name, classification, formation, uses, and field notes — written like a real field guide.