Jaipur, India: The Global Gem and Jewellery Power of the Pink City
Examines Jaipur’s role as a coloured stone cutting and jewellery manufacturing centre, with profiles of 17 companies and their factory, trading and retail operations.
Pleochroism in Faceted Gems: An Introduction
Describes the phenomenon of pleochroism and its complex effect on the appearance of coloured stones.
Some Tanzanite Imitations
Since at least 1995, various materials have been manufactured to imitate tanzanite in the gem trade.
Gem-Quality Green Zoisite
A new transparent, gem-quality green zoisite has been discovered in the Merelani Hills of mineral-rich Tanzania.
Gemstone Durability: Design to Display
A treatise on the design, display, care and repair of fine gemstones.
Abstracts; Summer 2009
This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
The examination of 23 tanzanites coated by an apparently new technique.