Télécharger le livre :  Beginner's Guide to Gemmology

Beginner's Guide to Gemmology presents the profiles of the principal gem materials. This book discusses the interesting characteristics of gemstones as the growing consumer market jewelry resulted in increased sales of gem testing instruments. Organized into 12...
Editeur : Butterworth-Heinemann
Parution : 2013-10-22

Format(s) : PDF sans DRM
57,97

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Télécharger le livre :  Gemmological Instruments

Gemmological Instruments deals with the developments in diamond grading equipment and gem testing instruments since the publication of the first edition in 1978. These developments include improvements in the versatility and styling of existing instruments such as the...
Editeur : Butterworth-Heinemann
Parution : 2013-09-24

Format(s) : PDF sans DRM
57,97

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Dès validation de votre commande