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A large red-orange crystal of wulfenite is nestled in the arms of matrix.
Article
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.

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A miner in northern Tanzania examines rhodolite.
Gemstone Guidebook Project

A project coordinated by GIA and the NGO Pact provides a valuable educational tool to women miners in Tanzania.

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Summer 2016 Gems & Gemology Cover
Article
Summer 2016 G&G: Diamonds from Diavik, Responsible Sourcing and Fabergé Cossack Figures

A summary of the content found in the Summer 2016 issue of Gems & Gemology.

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GG WN15 Cover
Article
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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Rounded Garnet Crystals
Bohemian Garnet – Today

Red garnets have been mined in the Bohemian Hills of Czechoslovakia since the 16th century.

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A Survey of the Gemstone Resources of China

China has identified many deposits with significant potential to produce gemstones; various species are discussed.

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A Status Report on Gemstones from Afghanistan

An overview of the plentiful and various gem materials being discovered and produced in Afghanistan.

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Sri Lanka: The Gem Island

An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.

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The Andradites of San Benito County, California

Mines in San Benito County, California, produce andradite in various colours; some are chatoyant.

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Brazil Overall Hero
Article
An Overview of the 2014 GIA Brazil Expedition

Join GIA’s field gemmologists as they venture into some of Brazil’s most important and productive emerald and tourmaline mines.

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