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GIA's Gübelin Gem Project: Various Gems, Olivine - Rutile

Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

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Four trapiche-like amethyst cabochons.
Trapiche-like Amethyst from Brazil

Four amethyst cabochons are unique due to inclusions that create a trapiche-like appearance.

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Amethyst crystals from Morocco
Moroccan Amethyst: Mining and Marketing

Insight into amethyst mining activity in Morocco.

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Article
Spring 2015 G&G Examines Blue Spinel, Chinese Jewellery Design and the Latest in Synthetics

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

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Bolivia’s Anahí Mine
Spring 2009 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, jewellery manufacturing techniques and industry trends.

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Amethyst from Four Peaks, Arizona

For more than a century, the Four Peaks mine in Maricopa County, Arizona, has produced gem-quality amethyst.

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Spring 2002 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, jewellery manufacturing techniques and industry trends.

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Brecciated Pyrite
Spring 1991 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, jewellery manufacturing techniques and industry trends.

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Spring 1989 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, jewellery manufacturing techniques and industry trends.

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Autumn 1989 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, jewellery manufacturing techniques and industry trends.

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