ZAWĘŻONE WYNIKI
Chelsea and Synthetic Emerald Filters Made Easy
The "RIGHT-WAY" Guide to Using Gem Identification Tools
Wydawca:
Turner Publishing Company
Explains in non-technical terms how to use the Chelsea filter and synthetic emerald filter to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones...
Książka
do koszyka
19,70 zł
Refractometers Made Easy
The "RIGHT-WAY" Guide to Using Gem Identification Tools
Wydawca:
Turner Publishing Company
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....
Książka
do koszyka
19,70 zł
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