Click Here to Download: https://ouo.io/o58hc1 Gemmological Instruments Their Use and Principles of Operation By: Peter G Read Publisher: Elsevier Butterworth Heinemann Print ISBN: 9780408011907, 0408011904 eText ISBN: 9781483192260, 1483192261 Edition: 2nd Copyright year: 1983 Format: PDF Available from $ 72.95 USD SKU 9781483192260 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.
