Primo Rocks: Fossil Identifier

Found a fossil, a strangely heavy stone or a sparkling crystal? Primo Rocks is your pocket geologist and fossil identifier. Take one photo and the AI names the likely rock, crystal, mineral, gemstone or fossil in seconds, then tells you its story, its estimated value and where in the world to find more.

IDENTIFY ANY ROCK IN SECONDS
Point your camera and the stone identifier gives you an instant answer with a confidence check, full physical properties and reference photos to compare. It works as a crystal identifier, gem identifier, mineral identifier and fossil identifier in one app.

FOSSIL IDENTIFIER AND METEORITE CHECK
From ammonites and trilobites to shark teeth and petrified wood, Primo Rocks gives a likely fossil ID and the story behind it. Picked up a heavy, dark stone? Use it as a meteorite identifier for a first look: it names the likely match and the visual cues to check. It is a guide, never a lab test.

KNOW WHAT IT IS WORTH
Every identification comes with an estimated rock value, a price range and the reasoning behind it, so you know if your find is a keeper. It is a guide, never an appraisal.

EXPLORE A BEAUTIFUL CATALOG
Browse gemstones, minerals, rocks and fossils in a rich catalog with warm, story style descriptions written for curious minds.

• Locality maps: see where each specimen is found around the world
• Mohs hardness: scratch resistance and geology facts at a glance
• Lore and meaning: the myths, history and crystal meanings behind every stone
• Rock of the Day: a fresh specimen with a new story every morning

BUILD YOUR COLLECTION
Save your finds into folders, keep a wishlist of stones you want to hunt next and watch your rock collection grow.

PERFECT FOR
• Rockhounds and amateur geologists
• Crystal lovers curious about meanings
• Beachcombers, hikers and families with curious kids
• Fossil hunters
• Meteorite hunters taking a first look at a heavy, dark find
• Anyone holding a mystery stone right now

PRIVACY FIRST
No account needed. Your scans and collection stay on your device.

Download Primo Rocks and turn every walk into a treasure hunt.

Whether you need a stone identifier, a gemstone identifier, a fossil identifier, a rock scanner or a quick rock id in the field, Primo Rocks is the geology app that goes rockhounding with you.

Recent changes:
- Bug fixes
- Performance improvements