“Decorated” Jadeite Jade in the Chinese Market

An examination of jadeite decorated with smaller jadeite ornaments.

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Trapiche-Type Sapphire from Tasmania (英語)

A rare Tasmanian trapiche-type sapphire, found during a field expedition, is examined.

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Fabergé Symposium

A report from “The Wonder of Fabergé: A Study of The McFerrin Collection,” held at the Houston Museum of Natural Sciences in November 2016.

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Sapphire Rush Near Ambatondrazaka, Madagascar (英語)

A newly found deposit of sapphire in Madagascar is explored.

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Blue Dravite-Uvite Tourmaline from Koksha Valley, Afghanistan

A new find of tourmaline yields surprising results.

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Color-Change Glass as a Zultanite Imitation

Two samples, presented as Zultanite, are revealed to be color-change glass.

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Durability of a Broken Glass-Filled Ruby

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Imitation Rubellite Boulders

Specimens presented as rubellite tourmaline rough are found to be resin imitations with lead inserts.

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