Rock Identifier
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.

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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
Quartz Geode (Crystalline Quartz (SiO2) within a sedimentary or volcanic host) — mineral

Quartz Geode

Crystalline Quartz (SiO2) within a sedimentary or volcanic host

mineral
Seam Agate (Agate (Banded variety of Chalcedony, SiO2)) — mineral

Seam Agate

Agate (Banded variety of Chalcedony, SiO2)

mineral
Quartz Geodes and Crystal Clusters (Silicon Dioxide (SiO2)) — mineral

Quartz Geodes and Crystal Clusters

Silicon Dioxide (SiO2)

mineral
Banded Iron Formation (BIF) / Red Jasper with Hematite (Ferruginous Chert (primarily Quartz [SiO2] and Hematite [Fe2O3])) — sedimentary

Banded Iron Formation (BIF) / Red Jasper with Hematite

Ferruginous Chert (primarily Quartz [SiO2] and Hematite [Fe2O3])

sedimentary
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Quartz Vein in Host Rock (likely Sandstone or Mudstone) (Silicon Dioxide (SiO2) within Sedimentary Matrix) — sedimentary

Quartz Vein in Host Rock (likely Sandstone or Mudstone)

Silicon Dioxide (SiO2) within Sedimentary Matrix

sedimentary
Quartzite with Quartz Veining (Meta-quartzite (composed primarily of SiO2)) — metamorphic

Quartzite with Quartz Veining

Meta-quartzite (composed primarily of SiO2)

metamorphic
Limonite (Iron Ore) (Hydrated ferric oxide mixture (FeO(OH)·nH2O)) — sedimentary

Limonite (Iron Ore)

Hydrated ferric oxide mixture (FeO(OH)·nH2O)

sedimentary
Quartzite (Quartzite (consisting primarily of SiO2)) — metamorphic

Quartzite

Quartzite (consisting primarily of SiO2)

metamorphic
Pearl (Calcium Carbonate (CaCO3)) — mineral

Pearl

Calcium Carbonate (CaCO3)

mineral
Granite (Granite (Phaneritic Quartz-rich Igneous Rock)) — igneous

Granite

Granite (Phaneritic Quartz-rich Igneous Rock)

igneous
Quartzite (Milky Quartzite) (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite (Milky Quartzite)

Quartzite (SiO2 silicon dioxide)

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

  1. Step 01

    Take a photo

    Capture the specimen in natural light. A clear shot of texture and color is all the AI needs.

  2. Step 02

    AI does the geology

    Our model reads mineral, texture, and color signatures to identify what you’re looking at.

  3. Step 03

    Read the report

    Get name, classification, formation, uses, and field notes — written like a real field guide.

Take Rock Identifier out into the world.

Free to download. The next rock you pick up — name it.