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The gemological properties and chemical compositions of two unusual color-change garnets are reviewed.
Read MoreFrom the Summer 1991 issue of Gems & Gemology, a summary of important gemology-related articles published in other journals.
Read MoreThe Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.
Read MoreAn explanation of the basic principles of the SEM-EDS system with examples of its efficacy in the field of gemology.
Read MoreThe third in the series, "Sapphire: A Crystal With Many Facets," this article looks at various emerging applications for synthetic sapphire.
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Reports on diamonds from Guyana’s alluvial deposits, including mining history and practices.
Read MoreHow contrast patterns can increase perceived brightness and optimize a gemstone's appearance.
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Poster abstracts on “New Technologies and Techniques” from GIA’s 2018 International Gemological Symposium.
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Investigates trace-element chemistry of freshwater natural pearls from North America and China with LA-ICP-MS and uses LDA to identify their origins.
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