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Spring 2000 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.

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GIA Museum display on liddicoatite tourmaline at the 2018 Tucson Gem and Mineral Show.
Zoning In on Liddicoatite Exhibit

An exhibit at the Tucson Gem and Mineral Show dedicated to former GIA president Richard T. Liddicoat (1918–2002).

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A round, bright red gem displayed on a dark gray background.
Article
The Red Hot Gems of Summer

These red, pink and orange hued gems evoke passion and excitement – and are surefire accessories for sultry summer days.

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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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Tubes and fractures associated with pink sleeves.
Rubellite with Incredibly Strong “Pink Sleeves”

Radiation-induced pink sleeves are seen in a rubellite cabochon.

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Paraíba tourmaline with coating.
Paraíba Tourmaline with Unusual Coating

A coated Paraíba tourmaline is seen for the first time at a GIA lab.

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Copper-bearing tourmaline acquired on the secondary market.
Importance of the Secondary Market for Fine Gems

Exceptional gems that are recirculated in the gem market make an impact at the Tucson shows.

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Solution-Generated Pink Color Surrounding Growth Tubes and Cracks in Blue to Blue-Green Copper-Bearing Tourmalines
Solution-Generated Pink Color Surrounding Growth Tubes and Cracks in Blue to Blue-Green Copper-Bearing Tourmalines from Mozambique

Several transparent, faceted, blue to blue-green copper-bearing tourmalines containing growth tubes and cracks surrounded by sleeves of pink color were examined for this report.

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Dark blue tourmaline from Afghanistan.
Blue Dravite-Uvite Tourmaline from Koksha Valley, Afghanistan

A new find of tourmaline yields surprising results.

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Pyrite Inclusions
Winter 2010 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.

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