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  2. Gems of Sri Lanka - Wikipedia

    en.wikipedia.org/wiki/Gems_of_Sri_Lanka

    Sri Lanka was affectionately known as Ratna-Dweepa which means Gem Island. The name is a reflection of its natural wealth. Marco Polo wrote that the island had the best sapphires, topazes, amethysts, and other gems in the world. [1] Ptolemy, the 2nd century astronomer recorded that beryl and sapphire were

  3. Geuda - Wikipedia

    en.wikipedia.org/wiki/Geuda

    Geuda (ගෙවුඩ, pronounced gay-yoo-dah [needs IPA]) is a form of the mineral corundum, or sapphire, found primarily in Sri Lanka. Around 70%-80% of gems mined in Sri Lanka belong to geuda varieties. Because of its semitransparent and milky appearance due to rutile inclusions, these stones have little value as gemstones in their natural ...

  4. List of sapphires by size - Wikipedia

    en.wikipedia.org/wiki/List_of_sapphires_by_size

    Sri Lanka 478.68 carats (95.736 g) Cushion Blue Anonymous owner [6] Logan Sapphire: Sri Lanka 422.99 carats (84.598 g) Cushion Blue National Museum of Natural History, Washington [7] Star of Asia: Burma 330 carats (66 g) Star Blue National Museum of Natural History, Washington [8] Star of Artaban: Sri Lanka 287 carats (57.4 g) Star Blue-violet

  5. Eheliyagoda - Wikipedia

    en.wikipedia.org/wiki/Eheliyagoda

    Eheliyagoda is a town in Ratnapura District, Sabaragamuwa Province, Sri Lanka. It is located approximately 72 km (45 mi) east of Colombo. The town is the centre of traditional gemstone mining [1] [2] and rubber plantations. [3] Ekanite, a rare radioactive gemstone, was first discovered in Eheliyagoda in 1953 by F. L. D. Ekanayake. [4] [5]

  6. Serendipity Sapphire - Wikipedia

    en.wikipedia.org/wiki/Serendipity_Sapphire

    Serendipity Sapphire is the world's largest star sapphire cluster, and it weighs 510 kilograms (2,600,000 carats). [1] It was found in Kahawatte, in the Ratnapura District , Sri Lanka, in July 2021. Its worth is estimated to be up to US$100 million.

  7. Category:Mines in Sri Lanka - Wikipedia

    en.wikipedia.org/wiki/Category:Mines_in_Sri_Lanka

    Graphite mines in Sri Lanka (3 P) This page was last edited on 2 November 2019, at 04:41 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4 ...

  8. Dumbara - Wikipedia

    en.wikipedia.org/wiki/Dumbara

    Dumbara is a town located in the Ratnapura District, Sri Lanka. It has a long history of mining activities. It has a long history of mining activities. It is where the first commercial operating graphite mine in the country, opening in 1840.

  9. Ratnapura - Wikipedia

    en.wikipedia.org/wiki/Ratnapura

    It is the capital city of Sabaragamuwa Province, as well as the Ratnapura District, and is a traditional centre for the Sri Lankan gem trade. It is located on the Kalu Ganga (Black River) in south-central Sri Lanka, some 101 km (63 mi) southeast of the country's capital, Colombo. Ratnapura is also spelled as Rathnapura.