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HomeIGC 2025Modern Cultivation of Freshwater Pearls in China: Advances in Materials, Technique
17. Nov
IGC 2025

Modern Cultivation of Freshwater Pearls in China: Advances in Materials, Technique

Niels Ruddy Hansen

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Pearl
17. Nov
IGC 2025
Found, Lost, and Found Again: The Geological and Gemological Significance of the Salininha Emerald Deposit, Brazil

The Salininha emerald deposit located in the municipality of Pilão Arcado, Bahia State, represents

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Elodie
17. Nov
IGC 2025
Zoisite and its many color

The mineral zoisite is a calcium alumosilicate belonging to the class of silicates, more exactly sor

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Elodie
17. Nov
IGC 2025
Gem zircon and sapphire age dating and application of origin determination: A study from New England sapphire fields, New South Wales, Australia

Ahmadjan Abduryim, Frederick Lin Sutherland, Terry Coldham, Elena Belousova Download Pdf

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Laurent Cartier

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Age dating Diamond Emerald Gemmology Geochemistry IGC Jade Organics Origins Other Gemstones Pearl Ruby Sapphire Spinel Synthetics Tourmaline Treatments

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