Atsiliepimai

(3.00 Goodreads įvertinimas)

Įvertink ir tu! Visi atsiliepimai

Aprašymas

Explains in non-technical terms how to use the dichroscope to identify 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 dichroscope.