Research Article Search Results

A Unique Omphacite Jade Pendant

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More on Virtu Gem’s Ethical Supply Chain Practices

An update on Virtu Gem’s mission to improve artisanal mining and gem trading practices in Kenya, Malawi, and Zambia.

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The Elahera Gem Field in Central Sri Lanka

The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.

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Sapphires from Australia

An overview of Australia's recent significance in the production of blue sapphire.

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Dumortierite-Quartz Rock Presented as Sapphire

The Gem Testing Laboratory of Jaipur, India, received for identification an opaque blue specimen, submitted as sapphire.

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Beyond Beauty: A Garnet Necklace Decoded

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The 3309 cm–1 Series in Sapphire and Ruby: A Focus on FTIR Peak Position Variation

Investigates the correlations between peak positions in the 3309 cm–1 series with trace element concentrations for ruby, metamorphic and basalt-related blue sapphire, and laboratory-grown sapphire.

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Burmese Jade: The Inscrutable Gem

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Introduction to the Micro-World of Gems

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Amber with Mite Inclusion

An unusual mite is preserved in a 30-million-year old amber specimen.

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Apatite “Piñata”

A cracked apatite specimen reveals hidden treasure.

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Colored Stones and Pearls | Gems & Gemology

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