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HomeIGC 2025Application of Fibre Optics Reflectance Spectroscopy (FORS) for the determination of mineral pigments in jasper
17. Nov
IGC 2025

Application of Fibre Optics Reflectance Spectroscopy (FORS) for the determination of mineral pigments in jasper

Ulrich Henn

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OriginsOther Gemstones
17. Nov
IGC 2025
On the nature of blue rose quartz

Over the past several years, the market for pink-coloured rose quartz has been augmented by variants

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Laurent Cartier
17. Nov
IGC 2025
Morphologies and Surface Features of Diamond Samples from Southern Thailand

In 1955, the first report on Thai diamond was made by Dr. Payome Aranyakanon, a renowned tin explora

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Laurent Cartier
17. Nov
IGC 2025
The Importance and Methodology of Undertaking a Literature Search for Gemmological Research and Article Publishing

Performing a literature search is a very important—but often neglected—part of doing gemmologica

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Elodie

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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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