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Mining Diamonds in the Canadian Arctic: The Diavik Mine

Located near the Arctic Circle, Diavik is one of the world’s richest diamond deposits and a leader in sustainable mining.

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Two variscite cabochons from central Tajikistan
Variscite from Central Tajikistan: Preliminary Results

A look at the gemmological properties and chemical composition of this light blue to light green to green gem material, which is suitable for cabochon cutting.

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Jadeite boulder from Itoigawa, Japan
Japanese Jadeite: History, Characteristics and Comparison with Other Sources

Examines the sources, colour, texture and chemical composition of jadeite from Japanese deposits.

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chrysoberyl samples
Chrysoberyl from the New England Placer Deposits, New South Wales, Australia

Examines a collection of chrysoberyl samples from these sapphire placer deposits to determine their distinct mineralogical and chemical properties.

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Rough danburite crystals from Luc Yen, Vietnam
A New Find of Danburite in the Luc Yen Mining Area, Vietnam

Reports on a recently discovered eluvial deposit of honey yellow danburite with excellent transparency.

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Emeralds from Musakashi, Zambia
Three-Phase Inclusions in Emerald and Their Impact on Origin Determination

Discusses the role of three-phase inclusions in emerald, in combination with spectroscopy and trace-element analysis, in determining geographic origin.

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