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HomeIGC 2025Typomorphic features of tourmalines of the Malkhan pegmatite field from the Irkutyanka vein
17. Nov
IGC 2025

Typomorphic features of tourmalines of the Malkhan pegmatite field from the Irkutyanka vein

A.Y. Shelementyeva, Y.B. Shelementyev, O.V. Yarapova

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Tourmaline
17. Nov
IGC 2025
Rubies from Greenland

Gemology is traditionally practiced in laboratories, focused on identifying and analyzing gemstones.

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Laurent Cartier
17. Nov
IGC 2025
Pink to Red and Violet Diamonds from the Argyle Mine, Australia: Properties, Color Origin and Latest Research Results

The Argyle Mine was by very far the largest producer of pink to red diamonds worldwide and the only

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Laurent Cartier
17. Nov
IGC 2025
Identification of melee size synthetic coloured diamond for jewellery

Synthesis methods to produce large and high-quality dia- mond for jewellery have been improved over

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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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