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HomeIGC 2025Hurlbutite from Myanmar
17. Nov
IGC 2025

Hurlbutite from Myanmar

Gravier D., Delaunay A., Boemo J., Arlabosse J.-M., Fritsch E., S. Karampelas
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Other Gemstones
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
Typomorphic features of tourmalines of the Malkhan pegmatite field from the Irkutyanka vein

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

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Elodie
17. Nov
IGC 2025
Gemological Characteristics of New Transparent Brown Sapphire

A newly observed variety of faceted transparent brown sapphire has recently entered the gem market,

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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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