Gem Testing
eBook - ePub

Gem Testing

  1. 350 pages
  2. English
  3. ePUB (mobile friendly)
  4. Available on iOS & Android
eBook - ePub

Gem Testing

About this book

This vintage book contains a complete guide to testing gems and gemstones for purity and authenticity. Complete with a plethora of useful illustrations and all the information a prospective or existing enthusiast might need to know about the subject, this book constitutes an ideal resource for anyone with an interest in lapidary and gem testing. The chapters of this volume include: "How to Use this Book", "Refractive Index and its Measurements", "Double Refraction and How to Detect It", "Colour, Colour Filters and Dichroscope", "The Specific Gravity of Gem-Stones and How to Measure It", "Detection of Synthetic and Imitation Stones", "The Use of the Microscope", etcetera. This antiquarian book is being republished now in an affordable, modern edition - complete with a specially commissioned new introduction on gemmology.

Frequently asked questions

Yes, you can cancel anytime from the Subscription tab in your account settings on the Perlego website. Your subscription will stay active until the end of your current billing period. Learn how to cancel your subscription.
At the moment all of our mobile-responsive ePub books are available to download via the app. Most of our PDFs are also available to download and we're working on making the final remaining ones downloadable now. Learn more here.
Perlego offers two plans: Essential and Complete
  • Essential is ideal for learners and professionals who enjoy exploring a wide range of subjects. Access the Essential Library with 800,000+ trusted titles and best-sellers across business, personal growth, and the humanities. Includes unlimited reading time and Standard Read Aloud voice.
  • Complete: Perfect for advanced learners and researchers needing full, unrestricted access. Unlock 1.4M+ books across hundreds of subjects, including academic and specialized titles. The Complete Plan also includes advanced features like Premium Read Aloud and Research Assistant.
Both plans are available with monthly, semester, or annual billing cycles.
We are an online textbook subscription service, where you can get access to an entire online library for less than the price of a single book per month. With over 1 million books across 1000+ topics, we’ve got you covered! Learn more here.
Look out for the read-aloud symbol on your next book to see if you can listen to it. The read-aloud tool reads text aloud for you, highlighting the text as it is being read. You can pause it, speed it up and slow it down. Learn more here.
Yes! You can use the Perlego app on both iOS or Android devices to read anytime, anywhere — even offline. Perfect for commutes or when you’re on the go.
Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app.
Yes, you can access Gem Testing by B. Anderson in PDF and/or ePUB format, as well as other popular books in Physical Sciences & Geology & Earth Sciences. We have over one million books available in our catalogue for you to explore.

Table of contents

  1. Cover
  2. Title
  3. Preface
  4. Contents
  5. I. How to Use This Book
  6. II. Refractive Index and its Measurement
  7. III. Double Refraction and How to Detect it
  8. IV. Colour, Colour Filters and the Dichroscope
  9. V. Specific Gravity and How to Measure it
  10. VI. Detection of Synthetic and Imitation Stones
  11. VII. The Use of the Microscope
  12. VIII. The Use of the Spectroscope
  13. IX. The Identification of Diamond
  14. X. The Identification of Ruby
  15. XI. The Identification of Sapphire
  16. XII. The Identification of Emerald
  17. XIII. Aquamarine and Alexandrite
  18. XIV. The Identification of Zircon
  19. XV. The Identification of Topaz
  20. XVI. The Identification of Pink, Mauve, etc. Stones
  21. XVII. The Identification of Brown and Orange Stones
  22. XVIII. Quartz, Opal, and Garnets
  23. XIX. Tourmaline, Peridot, and Spinel
  24. XX. Identification of Translucent and Opaque Stones
  25. XXI. Amber, Tortoiseshell, Coral, and Jet
  26. XXII. Pearls: Real, Cultured, and Imitation
  27. Appendix: Glossary, Alphabetical Summary of Gem Species, Crystal Systems, Bibliography, Specific Gravity and Refractive Index Tables
  28. Names and Addresses of Recommended Suppliers
  29. Index
  30. Index to Advertisers