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HomeIGC 2025A convincing glass imitation of larimar (pectolite)
17. Nov
IGC 2025

A convincing glass imitation of larimar (pectolite)

Gagan Choudhary

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

The identification of pigments is carried out routinely mostly by X-ray diffraction, FTIR and Raman

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Laurent Cartier
17. Nov
IGC 2025
Low Temperature Heat Treatment of Madagascar Sapphire

One of the challenges facing gemologists today is the detec- tion of low temperature (below 1200°C)

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Elodie
17. Nov
IGC 2025
Noble gas in corundum: interests in gemology

Noble gases —elements of the last column of the periodic table—are chemically defined by their f

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Elodie

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