7.95
Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the refractometer.
- : Antoinette Matlins
- : Gemstone Press
- : 9780990415237
- : Engels
- : Paperback
- : 26
- : juni 2014
- : 55
- : 228 x 152 x 2 mm.
- : Antoinette Matlins Right-Way Series to Using Gem Identification Tools
- : Antiquiteiten en verzamelobjecten: sieraden