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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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<em>Gota de Aceite</em> in an emerald from Zambia.
Gota de Aceite in a Zambian Emerald

A phenomenon usually seen in Colombian emeralds is found in a specimen from Zambia.

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Rough emerald with mobile inclusion.
Emerald with Mobile Inclusion

An emerald rough displays a large, multiphase inclusion suspended in fluid.

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La Lechuga features nearly 1,490 Colombian emeralds.
La Lechuga Monstrance

A devotional object in the baroque style is on a brief European tour through the new year.

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Article
GIA Gem Project
Beryl

Chemically pure beryl is colorless, but trace elements give rise to green, blue and pink/red colors.

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Zambia’s Kagem emerald mine.
Conversation with Gemfields

An exclusive interview with Ian Harebottle, CEO of Gemfields.

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Second-generation stones from Brazil’s Canaan mine.
New Emerald Production from Belmont

Activity at Brazil’s Belmont mine is updated at Tucson.

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Article
GIA Gem Project
Corundum

Ruby and sapphire (usually blue, but also in every other color) have been the most important colored gemstones for several thousand years. Originating historically in southeast and central Asia, and more recently in eastern Africa, these colored varieties of the mineral corundum have been much sought as gems because of their rarity, color and durability. Gem corundum can display asterism and chatoyancy due to the presence of oriented mineral inclusions, and in some cases, a change of color when viewed under different light sources.

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Article
GIA Gem Project
Corundum

Ruby and sapphire (usually blue, but also in every other color) have been the most important colored gemstones for several thousand years. Originating historically in southeast and central Asia, and more recently in eastern Africa, these colored varieties of the mineral corundum have been much sought as gems because of their rarity, color and durability. Gem corundum can display asterism and chatoyancy due to the presence of oriented mineral inclusions, and in some cases, a change of color when viewed under different light sources.

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Parisite inclusion in emerald.
Inclusions in Natural, Synthetic, and Treated Emerald

Provides a visual guide to the internal features of natural, synthetic, and treated emeralds.

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