
- 340 pages
- English
- PDF
- Available on iOS & Android
About this book
Gemmological Instruments deals with the developments in diamond grading equipment and gem testing instruments since the publication of the first edition in 1978. These developments include improvements in the versatility and styling of existing instruments such as the reflectivity meter, the composite spectroscope, and the refractometer. It also addresses the criticisms in the first edition and provides a discussion of the advantages and disadvantages of different gem testing equipment. This book is organized into 16 chapters that describe groundbreaking instruments like the thermal conductivity diamond testers and home-constructed items that while innovative have not yet been commercialized. There are also chapters dealing with microphotography and identification of synthetics and stimulants. This book also provides a listing of gemstone constants and characteristic inclusions in natural and synthetic gemstones. This book will be of interest to people interested in equipment for gem testing and diamond grading.
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Information
Table of contents
- Front Cover
- Gemmological Instruments: Their Use and Principles of Operation
- Copyright Page
- Table of Contents
- Dedication
- Preface to Second Edition
- Preface to First Edition
- Chapter 1. Gemstone Characteristics and Constants used for Identification
- Chapter 2. Preparation and Handling of Gemstones
- Chapter 3. Inspection Aids
- Chapter 4. Colour (including spectral absorption and pleochroism)
- Chapter 5. Refractive index. Birefringence. Optical character and dispersion
- Chapter 6. Relative Reflectivity
- Chapter 7. Specific gravity
- Chapter 8. Spectra
- Chapter 9. Luminescence
- Chapter 10. Hardness
- Chapter 11. Thermal conductivity
- Chapter 12. Identification of Synthetics and Simulants
- Chapter 13. Experimental Instruments
- Chapter 14. Diamond Sorting and Grading
- Chapter 15. Reserarch Laboratory Equipment
- Chapter 16. Miscellaneous Items
- Appendix A: Manufacturers and Suppliers
- Appendix B: Gemstone Constants
- Index
- Index to advertisers
- MARTIN MGA. 1 GEM ANALYZER
- GEMMOLOGY FOR YOU (PERSONALLY)
- A GIANT STEP IN THE AGE OF DISCOVERY
- GEMMOLOGICAL INSTRUMENTS
- Over 50 years of gemological rand research are built into every instrument
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