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Emerald
Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.
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An Extraordinarily Large Cat’s-Eye Emerald
The Tokyo laboratory examines a 126 ct cat’s-eye emerald from Brazil.
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Gota de Aceite–Like Effect in a Brazilian Emerald
GIA’s Tokyo laboratory examines a Brazilian emerald with a gota de aceite–like effect characteristic of Colombian emeralds.
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A Gemological and Spectroscopic Study with Mobile Instruments of “Emeralds” from the Coronation Crown of Napoleon III
An examination of 45 gems from the coronation crown of Napoleon III, using nondestructive mobile spectroscopic and gemological testing methods.
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Myne London: Sourcing Emeralds with a Mission
A London-based company aims to responsibly source emeralds from Swat Valley, Pakistan, while supporting women in business and education.
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Apatite Cluster in Zambian Emerald
A fantastic example of an apatite inclusion cluster in emerald consisting of a hexagonal prismatic crystal and many rod- and bamboo-shaped crystals.
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Fracture-Filled Emerald with Mysterious Filler Patterns
Filler patterns resembling a labyrinth are observed in emerald fractures.
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History of Emerald Mining in the Habachtal Deposit of Austria, Part II
The finale of a two-part series on the mining history of Austrian emerald deposits in the Habachtal region.
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Unusual Repair of a Natural Emerald
Glass identified as the raw material used to conceal damage of a natural emerald.
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Nail-Head Spicule in a Russian Emerald
The Carlsbad laboratory observes a nail-head spicule in a natural Russian emerald.
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History of Emerald Mining in the Habachtal Deposit of Austria, Part I
Contributes to the mining history of Austria’s Habachtal region, which is believed to be one of the earliest emerald deposits.
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