Emeralds from the Kafubu Area, Zambia
Zambia is considered the world’s second most important source of emeralds by value (after Colombia).
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.
Emeralds from the Ural Mountains, USSR
Emeralds are again being mined in the historic district of the Ural Mountains. Physical, chemical, spectroscopic and microscopic characteristics of stones from the recent production are presented and compared with data on older samples as well as those reported in the literature.
Emerald and gold treasures of the Spanish galleon Nuestra Señora de Atocha
During the 1970s and 1980s, treasure hunters discovered the centuries-old remains of the sunken Spanish galleons Nuestra Señora de Atocha and Santa Margarita.
Fracture Filling of Emeralds Opticon and Traditional "Oils"
The filling of surface-reaching breaks in emeralds is a relatively common practice, for which various kinds of oils and a natural resin have historically been used.
The Capoeirana Emerald Deposit near Nova Era, Minas Gerais, Brazil
In 1988, a significant find of emeralds was made at Capoeirana, near Nova Era, in the state of Minas Gerais, Brazil.
Emeralds and Green Beryls of Upper Egypt
More than 2,000 years ago, emerald deposits in upper Egypt were supplying gems throughout the Graeco-Roman Empire.
Gemmological Investigation of a New Type of Russian Hydrothermal Synthetic Emerald
Tairus, in Novosibirsk, has produced yet another new type of Russian hydrothermal synthetic emerald.
The Gujar Killi Emerald Deposit, Northwest Frontier Province, Pakistan
Over the last decade, Pakistan has developed into an important source for many gem materials.
Characterisation of the New Malossi Hydrothermal Synthetic Emerald
A new production of hydrothermal synthetic emeralds.