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

Initial release of Gemstones & Crystals Guide featuring 126 minerals and specimens.