Install the free GeoMiner app

Add GeoMiner to a supported device from the browser for quick home-screen access to free rock, mineral, and fossil identification, field guides, training, and geology tools. On Android, open GeoMiner in Chrome and choose Install app or Add to Home Screen. On iPhone or iPad, open GeoMiner in Safari, use Share, and choose Add to Home Screen. Installation is optional: every public tool remains available in the browser. Previously opened public pages may remain available offline, while live AI identification and synced account features still require a connection.

Free photo identifier — Upload specimen photos for evidence-led rock, mineral, or fossil candidates.
Quick ID by properties — Narrow an unknown specimen without an account or photo.
All guides and tools — Browse free earth-science guides, comparisons, calculators, printables, and learning resources.
Every GeoMiner feature — Review identification, training, classroom, community, and professional field workflows.

JavaScript is loading the interactive GeoMiner experience. The identification tools provide educational candidates, not laboratory confirmation.

Install the free GeoMiner app

Start using GeoMiner