Gunawardane, R.P.2010-07-062010-07-061987Journal of the National Science Council of Sri Lanka, 15(1):p.87-99https://dl.nsf.gov.lk/handle/1/6392Thermal treatmentHalogen estimationPhosphorus estimationDehalogenationGeologyStudies on chlorine and fluorine in Eppawela apatiteArticle