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This third volume of the collection Gemstones, Quality and Value focuses on the study and valuation of the different pieces of jewelry.
Manual very complete to calculate the weight of the stones mounted from their measures. Serves for all kinds of carvings and stones. In each of the...
In this volume you will find a multitude of gems are studied as for example: iolita, emeralds from Zambia, opal boulder and mexican, runies of...
This book with beautiful illustrations, shows us the characteristics of the different precious stones in order to be able to judge its quality and...
Book fotomicrografias of great print quality and visual. Classified by type of inclusions, and by groups of stones. 2000 illustrations in color...
Book fotomicrografias of great print quality and visual. Classified by type of inclusions, and by groups of stones. 1433 illustrations to...
In this manual, the collector enthusiast, you will find tips on how to dig and pick up the stones properly, but being respectful of your environment.
Basic treaty of gemmology, on all aspects of this matter, starting from providing notions of mineralogy in general.
Professor Walter Schumann provides us with a complete vision, fully up-to-date on the fascinating world of precious stones. You can see more of...
Author Cally Hall Guide with 130 varieties of gemstones. General introduction and identification for the amateur. With 1500 full-color...
Has a large quantity of full color images with the characteristics, or footprints microscopic drop out of treatments or the methods of synthesis...
This new edition of the work, Gem is dedicated to gem dealers, lapidary, jewelers, hobbyists, to the subject and students.
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