Mahatantila, K.2020-07-212020-07-212004https://dl-susl.nsf.gov.lk/handle/1/27369Natural ResourcesCharacterization of zircons in Buttala - Okkampitiya gem fields, Sri Lanka:an implication for heat treatmentResearch ReportAP-NATURAL-139BSc00/AS/059Sabaragamuwa University of Sri Lanka