Gemstones & Crystals Guide

Discover the fascinating world of geology and gemology with Gemstones & Crystals Guide, your definitive pocket reference for mineral identification, geological science, and gem history.

Whether you are a rockhound, geology student, mineral collector, jewelry enthusiast, or nature lover, this guide provides authoritative, museum-grade information for 126 gemstones and minerals.

COMPREHENSIVE SCIENTIFIC PROFILES
Every specimen profile is packed with verified geological data:
- Chemical formula and mineral classification
- Crystal system and atomic symmetry
- Mohs hardness scratch-resistance scale
- Specific gravity and density measurements
- Diagnostic optical properties: luster, transparency, and streak
- Cleavage, fracture, and crystal habit
- Geological occurrence, formation environments, and notable geographic deposits

DETAILED SPECIMEN GALLERIES
Examine high-resolution illustrations and gallery artwork for each entry:
- Natural raw rough mineral specimens
- Precision lapidary cuts and polished gemstones
- Historic and contemporary jewelry settings

SMART IDENTIFICATION FILTERS
Find minerals quickly with flexible field search and discovery tools:
- Search instantly by common name, variety alias, or chemical composition
- Filter by color family: blue, green, red, golden, violet, and more
- Filter by Mohs hardness rating to assist physical scratch testing
- Filter by mineral family, including silicates, oxides, carbonates, and native elements
- Browse traditional and modern birthstone calendars

CULTURAL HISTORY AND FOLKLORE ARCHIVE
Explore humanity's enduring fascination with stones across civilizations:
- Ancient mythologies, cultural beliefs, and historic lore
- Dedicated cultural history archive clearly separated from scientific geology data
- Objective presentation of historical traditions and symbolic meanings

PERSONAL GEMSTONE COLLECTION
Build and organize your personal mineral cabinet:
- Mark stones as collected in your personal cabinet
- Maintain a wishlist of specimens to acquire
- Star your favorite crystals for fast access
- Add custom personal notes and search tags
- Review real-time collection statistics and category completion

DESIGNED FOR FIELD REFERENCE
- Complete offline availability with on-device database storage
- Clean, museum-inspired typography and responsive layout
- Fast, distraction-free exploration anytime, anywhere