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Abstracts; Summer 1991

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

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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.

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Russian Flux-Grown Synthetic Emeralds

The properties and techniques of flux-grown synthetic emeralds from Russia are discussed.

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Abstract Header from the 2009 issue of Gems & Gemology
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.

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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.

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Update on Emeralds from the Sandawana Mines, Zimbabwe

Zimbabwe’s Sandawana mines have been an important producer of emeralds for 40 years.

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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.

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Ural Emerald Mines
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.

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Agates from Sidi Rahal, in the Atlas Mountains of Morocco

A report on the chemical and mineralogical analysis of samples’ solid inclusions.

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Unusual Curved Colour Zoning In Emerald

A report on a 1.17 ct emerald obtained in Kabul, Afghanistan for GIA's permanent reference collection

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