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Bright red faceted ruby in a gold ring, from the large and potentially productive Snezhnoe deposit in Tajikistan.
Rubies and Sapphires from Snezhnoe, Tajikistan

This large marble-hosted occurrence in the Pamir Mountains is a potentially productive source of corundum, including ruby with a bright red color reminiscent of “pigeon’s blood” Burmese rubies.

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Pyrope Garnet and Montana Sapphires Highlight Winter 2015 G&G

G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.

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2010 Gemological Abstracts Header
Abstracts; Summer 2010

This article, from the Summer 2010 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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“Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum

A relatively new production of red corundum, reportedly from Bangkok, has been offered for sale in recent years.

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Introduction to Analyzing Internal Growth Structures: Identification of the Negative d Plane in Natural Ruby

This article presents the methods and instruments needed to analyze the internal growth structures of corundum.

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Synthetic Rubies by Douros: A New Challenge for Gemologists

Greek manufacturer J. & A. Douros introduced a new flux synthetic ruby in early 1993.

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New Rubies from the Morogoro Area, Tanzania
New Rubies from the Morogoro Area, Tanzania

The authors present the mineralogical and gemological properties of rubies found recently in the Morogoro area of Tanzania that have many features in common with rubies from Myanmar (Burma) and other comparable marble-type deposits.

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The Ramaura Synthetic Ruby

A report on the new synthetic ruby trade-named Ramaura.

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Abstracts; Fall 1991

This article, from the Fall 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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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 & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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