Month: January 2017

Market Trend-Burmese Ruby

Ruby, the king of gemstones, has traditionally been much rarer than sapphire in nature, although both are varieties of the same mineral. This rarity is a major factor in pricing fine and extra fine quality…

Ruby & Sapphire A Gemologist’s Guide

By Richard W. Hughes with Wimon Manorotkul & E. Billie Hughes RWH Publishing/Lotus Publishing 1st edition, 1st printing. Printed in Thailand. ISBN 978-0-9645097-1-9 707 pages Ruby & Sapphire A Gemologist’s Guide is the much-awaited work of famed gemologist…

Gem-A Conference London

The Gem-A conference each year is not only a highly respected educational conference drawing from many countries globally but also a “celebration of students” as Alan Hart, new C.E.O. for Gem-A stated in his opening…

Clinohumite

Introduction Clinohumite, (Mg,Fe)9(SiO4)4(F,OH)2, is a mineral species in the humite group which also includes humite, chondrodite, and norbergite. These species are easily confused with each other as they have similar properties that often overlap. The relative…

Colored Stone Market

Dealers are confident that the new year will see an uptick in business for the U.S. colored stone trade. Expectations for the Tucson Gem shows are very upbeat. It is expected that business at the…