The Elahera Gem Field in Central Sri Lanka
Mahinda Gunawardene and Mahinda S. Rupasinghe, June 1, 1986
The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.
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Sri Lanka: The Gem Island
Peter C. Zwaan, June 1, 1982
An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.
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