Mineral Reference

Browse minerals and gemstones with Mohs hardness, crystal system, birthstones, and a personal collection tracker — all offline, all on one screen.

Mineral is a quiet, beautiful pocket reference for minerals, gemstones, and crystals.

Browse a curated catalog of specimens with the details that actually matter — Mohs hardness, crystal system, luster, cleavage, color, chemical formula, origin, and uses. No clutter, no popups, no upsells.

KEY FEATURES • Curated catalog of minerals and gemstones across all major categories • Filter by category (Silicate, Oxide, Carbonate, Sulfide, Halide, Native Element, Organic Gem) and crystal system • Birthstones by month — find the traditional and modern stones for any birthday • Mohs hardness scale — see exactly where each specimen sits from talc to diamond • Personal collection — mark specimens you own and keep notes • Full specimen detail: color, luster, cleavage, formula, origin, common uses • Search across the whole catalog instantly • Built for iPhone, dark mode by default

A FOCUSED REFERENCE Whether you are a rockhound, a student, a jeweler, or just curious about the stone in your pocket, Mineral keeps the essential facts one tap away.

PRIVACY No tracking. No accounts. No network calls. Your collection lives only on your device.