Browsing Research Publications by Author "Illangasinghe, S"

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  • Value addition of Sri Lankan dark spinels through a heat treatment technique 
    Samaranayake, KPRN; Balasooriya, NWB; Illangasinghe, S [Conference-Abstract]
    Ruby, Sapphire, and Emerald are the gem varieties that come under the precious gem category. Therefore, they have a high economic value in the global gem market. Semiprecious gem types are already gaining significant ...