Turquoise History and Lore
Turquoise is one of the world’s most ancient gems. Archaeological excavations revealed that the rulers of ancient Egypt adorned themselves with turquoise jewellery, and Chinese artisans were carving it more than 3,000 years ago.
Arizona Road Trips: Wild West Gem and Mineral Localities
Arizona’s scenic desert and mountain landscape is the perfect backdrop for a modern Wild West road trip in search of gem and mineral treasures.
A Survey of the Gemstone Resources of China
China has identified many deposits with significant potential to produce gemstones; various species are discussed.
Abstracts; Winter 1991
This article, from the Winter 1991 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
A Gemological Study of Turquoise in China
Chinese gem-quality turquoise is sky blue, greenish blue or bluish green in colour.
The Identification of Zachery-Treated Turquoise | Gems & Gemmology
Millions of carats of turquoise have been enhanced by a proprietary process called the Zachery treatment.