Rock Catalog

RockCatalog is a private field notebook for anyone who picks up stones on the

trail, at the beach or in old quarries. Log every specimen with a species name,

date, location and free-form notes, then browse your growing catalog whenever

you want.

The app ships with a curated reference library of forty common rocks and

minerals: quartz, granite, obsidian, basalt, marble, slate, gneiss, pyrite,

hematite, azurite, calcite, feldspar, mica, gypsum, halite, amethyst, citrine,

jasper, agate, opal, tourmaline, malachite, sulfur, fluorite, garnet, olivine,

magnetite, bauxite, limestone, sandstone, shale, dolomite, chert, pumice,

tuff, schist, quartzite, chalk, coal and serpentinite. Each entry includes the

category (igneous, sedimentary, metamorphous, mineral) and a short field

description so you can identify what you have picked up.

Features

- Add a new find with a bottom-sheet form and species picker

- Long-press a find to remove it with a confirmation prompt

- Species Library with realtime search and detail sheet

- Unified search across your finds and the reference library

- Fully offline: everything stays on your device

- Distraction free interface with an earthy ocher and rust palette

- No accounts, no tracking, no notifications

RockCatalog is designed for hikers, geology students, rockhounds and anyone

who enjoys collecting interesting stones. Whether you are cataloguing a

lifetime of specimens on the shelf or logging fresh finds during a weekend

trip, the app gets out of the way and lets you focus on the rocks.