Rock identifier & Rock scanner vs Bench Reference

Crystal Recognizer is the best offline app about rocks, minerals and gems! The app provides detailed information and high quality images to help you easily identify different types of stones. With a user-friendly interface, you can quickly navigate through the vast collection of stones and gems. You can search for stones and gems by name. One of the app's key features is its extensive database of rocks, minerals, and gems. You can also save your favorite stones and gems for easy reference later. Advantages: - Huge database of rocks, minerals and gems; - Images and detailed descriptions; - Modern interface design; - Search for stones and gems by name; - Add your favorite stones and jewels to your favorites; - Ideal for everyone: geology students, stone collectors, jewelers and enthusiasts. Crystal Recognizer is the perfect tool for anyone who wants to learn more about the beauty and mystery of stones and minerals, who is interested in rocks, minerals and gemstones. Privacy Policy: https://docs.google.com/document/d/1hw53t6r1ECoO8Ic2qQbnnrXXzDCHz6HedafzQlDL3JU/edit?usp=sharing Terms of Use: https://docs.google.com/document/d/1dbTefZgVzUwNdO-mqXZ4qJGqegisIP14R5ITFnbRP3w/edit?usp=sharing

Bench Reference — The Professional Jeweler's Pocket Guide Everything a bench jeweler needs, right on your phone. Bench Reference puts 30+ reference sections, professional calculators, and a personal library system in your pocket — no internet required. GEMSTONES & MATERIALS Browse 100+ gemstones with Mohs hardness, specific gravity, refractive index, care instructions, setting tips, steam safety, and cleaning methods. Filter by hardness or steam safety to make quick decisions at the bench. Plus dedicated sections for pearls, birthstones, gemstone origins, and stone shapes. BENCH TECHNIQUES Step-by-step reference guides for stone setting (prong, bezel, pavé, channel, flush, tension), soldering, casting, polishing, engraving, wax carving, repairs, annealing, torch & gas, laser welding, rhodium plating, patina & oxidation, and chemical safety. Each section built from real bench experience. 23 METALS Melting points, annealing temps, hardness, specific gravity, and working notes for every metal you'll encounter — from 24K gold and platinum to palladium, steel, and titanium. REPAIRS HUB Sizing up, sizing down, shank replacement, prong rebuilding, chain repair, clasp replacement, soldering guides, porosity troubleshooting, and more. A complete repair reference when you're at the bench. MEASUREMENTS & DATA Ring sizes (US/UK/EU with conversions), wire gauge reference, MM-to-carat weight charts by stone shape, chain styles, necklace and bracelet lengths, finding sizes, and formulas for weight, pricing, and alloy calculations. IDENTIFICATION & TESTING Gemstone testing methods, acid testing procedures for gold, silver, and platinum, hallmark identification, metal allergy reference, and a Stone ID table with SG and RI values for quick identification. PROFESSIONAL TOOLS Ring Blank Calculator — stock length for any ring size Metal Weight Calculator — weight by dimensions and alloy Job Pricing Calculator — materials, labor, and markup Temperature Converter — Fahrenheit and Celsius Weight Converter — grams, dwt, troy oz, carats Bench Timer — burnout and casting countdowns 3D PRINT & CAD Castable resin profiles, resin comparison charts, shrinkage calculator, burnout schedules, support placement guide, troubleshooting, post-processing, printer settings, and stone-in-place casting. Plus MatrixGold CAD shortcuts and workflows. MY LIBRARY Your personal database. Store product specs, component details, alloy recipes, consumable inventory, and supplier contacts. Add photos, SKUs, links, and notes. Organized by category, searchable, and always with you. LEARN & PRACTICE Flashcards and quizzes covering gemstones, metals, setting techniques, and bench skills. Study at your own pace. Perfect for apprentices and seasoned jewelers brushing up. GLOSSARY 200+ jewelry industry terms defined clearly — from bail to burnisher, firescale to findings. NEW IN v8.1 Redesigned splash screen and home page Expanded and fact-checked reference data across metals, solders, gemstones, and casting Added Wire Gauge reference, Patina & Oxidation section, and new gemstones to Stone ID Fixed display issues and icons throughout the app General polish and performance improvements BUILT FOR THE BENCH No ads. No subscriptions. No internet required. Bench Reference is built by jewelers for jewelers — a single purchase that works offline, everywhere you need it.