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.

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

Copper Ore

Mixed copper sulfides/oxides in gangue matrix

mineral

Granite (likely biotite granite)

Coarse-grained felsic plutonic rock; primarily quartz, plagioclase and potassium feldspar with biotite/hornblende

igneous

Quartz-rich vein rock, possibly milky quartz with iron-oxide staining

Quartz (SiO₂), likely with limonite/goethite and minor host-rock material

mineral

Milky quartz with iron-oxide staining

Quartz (SiO₂), likely massive/milky quartz with hematite/goethite staining

mineral

Weathered quartz-rich cobble (likely quartzite)

Quartzite; predominantly microcrystalline quartz (SiO₂)

metamorphic

Granite

Granite; chiefly quartz (SiO₂), feldspar, and mica

igneous

Granite-like rock

Coarse-grained granitoid, likely granite or granodiorite

igneous

Quartz-rich vein rock, possibly milky quartz in altered host rock

Quartz (SiO₂), likely with weathered silicate minerals and iron/manganese staining

mineral

Granite-like rock

Coarse-grained granitoid, probably granodiorite or granite

igneous

Altered volcanic rock, possibly andesite

Likely porphyritic andesite or dacite with secondary chlorite/epidote and quartz–calcite veins

igneous

Iron-stained quartz/quartzite pebble

Quartz (SiO₂), likely quartzite or quartz-rich vein rock with iron oxides

metamorphic

Quartz-veined metamorphic rock, likely greenschist or altered metavolcanic

Chlorite–actinolite–epidote-bearing metavolcanic rock with quartz veins; exact identification requires testing

metamorphic

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.