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The Heat treatment of Ruby and Sapphire

by Themelis, Ted.

Language: EN Publisher: Gemlab Inc. 1992Availability: Items available for loan: Library, University of Moratuwa (1). Location(s): Lending Collection Call number: 549.517.13 T4.

The Heat treatment of ruby and sapphire

by Themelis, Ted.

Language: EN Publisher: Santa Monica GIA 1992Availability: Items available for loan: Library, University of Moratuwa (1). Location(s): Lending Collection Call number: 549.517.13 T4.


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