Determination of the Spectrophotometric Properties of Low-Quality Gems in Sri Lanka: A Case Study from Marapana

Sandaruwan, P.D.; Jayalath, R.D.M.G.; Udawatte, C.P.; Wanniarachchi, D.N.S.; Wijesekara, H.; Gunasekara, I.; Diyabalanage, R.S.; Zoysa, G.

Date: 2021-12-21

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