TY - BOOK AU - Jaliya R. G. Chamal AU - Prof. P. G. R. Dharmaratne AU - Prof. K. B. Wijesekara TI - Appraisal of heat treatment of "GEUDA" gemstones using gas- fired and electrically operated furnace PY - 2021///] KW - “GEUDA” HEAT TREATMENT KW - “GEUDA” KW - GEMSTONE ENHANCEMENT KW - GEMSTONE CHARACTERIZATION KW - GEM MINERALS - Sri Lanka KW - EARTH RESOURCES ENGINEERING - Dissertation KW - Master of Philosophy UR - http://dl.lib.uom.lk/handle/123/18653 ER -