Abstracts; Summer 1991
From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.
Emeralds from the Mananjary Region, Madagascar: Internal Features
Mananjary emeralds usually can be separated from emeralds from other localities by means of associations of certain mineral inclusions.
Russian Flux-Grown Synthetic Emeralds
The properties and techniques of flux-grown synthetic emeralds from Russia are discussed.
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 of Colombia
A comprehensive review of the history and geology of Colombian emeralds together with descriptions of some of the most famous gems to come from this locality.
Update on Emeralds from the Sandawana Mines, Zimbabwe
Zimbabwe’s Sandawana mines have been an important producer of emeralds for 40 years.
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.
An Update on the Ural Emerald Mines
The emeralds of the Ural Mountains, in what is now called the Russian Federation, have been known for more than 160 years.
Agates from Sidi Rahal, in the Atlas Mountains of Morocco
A report on the chemical and mineralogical analysis of samples’ solid inclusions.
Unusual Curved Colour Zoning In Emerald
A report on a 1.17 ct emerald obtained in Kabul, Afghanistan for GIA's permanent reference collection