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Fossils · Minerals · Rocks · Gemstones

Your collection, catalogued like a museum.

Catalog with real science. Taxonomy, era → period → epoch dating with ranges, locality, formation, dimensions and photos — with automatic catalog numbers.
See your collection at a glance. Donut charts by category, era, period, epoch and element, plus a geological timeline of your whole collection.
Look things up. An illustrated encyclopedia of specimens, minerals and deep time — with embedded video.
Trade and talk. A trade & wanted board, a full forum for identification help, likes, follows and achievements.
Share or stay private. Follow other collectors, or hide your whole collection with one switch.

New Just shipped

An interactive globe. Tag a find with a place — search by town or country, no coordinates needed — and see it as a labelled marker on a spinning Earth. Your profile shows every find you've made, worldwide.
Video in the encyclopedia. Embed YouTube or Vimeo in any article, or drop clips straight into forum posts.
Dark mode. One tap in the header, and it remembers.
Much faster pages. Photos are resized in the background now, so browsing a big collection is instant.