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Antoinette Matlins
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A. C. Bonanno
pubblicato da
GemStone Press
The first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natural gems from imitations, treated stones, synthetics, and look-alikes. The books approach is direct and practical, and its style easy to understand. Using a simple, step-by-step system, the authors explain how to properly use essential but uncomplicated instruments to identify stones, what to look for gemstone by gemstone, and how to set up a basic lab at modest cost.
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