1 of 3
Документални
Explains in non-technical terms how to use the loupe and dark-field loupe 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 loupe and dark-field loupe.
© 2013 GemStone Press (Е-книга): 9780943763941
Дата на публикуване
Е-книга: 29 август 2013 г.
1 of 3
Документални
Explains in non-technical terms how to use the loupe and dark-field loupe 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 loupe and dark-field loupe.
© 2013 GemStone Press (Е-книга): 9780943763941
Дата на публикуване
Е-книга: 29 август 2013 г.
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