Research Article Search Results

Low-Temperature Heat Treatment of Pink Sapphires from Ilakaka, Madagascar

Studies the effects of low-temperature heat treatment on inclusions in this gem material, as well as the use of FTIR spectroscopy to detect the treatment.

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The Effects of Heat Treatment on Zircon Inclusions in Madagascar Sapphires

Zircon inclusions in sapphires from Madagascar were studied to investigate the effects of heat treatment on their gemological and spectroscopic features.

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Fluorescence Produced by Optical Defects in Diamond

How variations in UV lamp output can affect observed fluorescence color and intensity.

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History of the Chivor Emerald Mine, Part I (1880–1925): From Rediscovery to Early Production

Chronicles developments at the Chivor emerald mine in Colombia between 1880 and 1925, based on archival records.

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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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Preview of Nature Art Science with Paula Crevoshay

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Unheated and Unusual Colors

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Colored Stones and Pearls | Gems & Gemology

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Dendritic Patterns in Emerald

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Devitrified Glass “Pom-Poms” in Ruby

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Evil Eye in a Flux-Healed Mong Hsu Ruby

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Prismatic Zircon in Kashmir Sapphire

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