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	1.	Gemology [Text] by Hurlbut, Cornelius S Edition: 2nd ed. Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: New York John Wiley 1991 Availability: Items available for reference: Main Library : Not for loan (1)Call number: 553.8 HUR. Add to cart (remove)
	2.	No cover image available Gems of Shri Lanka. [Text] Ariyaratna, D. H. by Ariyaratna, D. H Edition: 5th rev.ed. Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Colombo Sri Lanka Association for the Advancement Science 1993 Availability: Items available for reference: Main Library : Not for loan (2)Call number: 338.278 ARI, ... Add to cart (remove)
	3.	No cover image available මැණික් විද්‍යාවේ මූලධර්ම [Text - Sinhala] by Kadigamuwa, P Material type: Text Publication details: Colombo M. D. Gunasena 1972 Title translated: Manik vidyave muladharma. Availability: Items available for reference: Main Library : Not for loan (1)Call number: 553.8 KAD. Add to cart (remove)

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