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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. Sinhalite - Wikipedia

    en.wikipedia.org/wiki/Sinhalite

    Sinhalite was first found in Sri Lanka (Ceylon) in 1952, and was named from Sinhala - the Sanskrit name for Sri Lanka. [3] Gemstone quality Sinhalite can also be found in Madagascar, Tanzania and Myanmar (Burma). The most commonly seen color of Sinhalite are white to gray, grayish-blue or a shade of brown ranging from pale to dark.

  4. Ekanite - Wikipedia

    en.wikipedia.org/wiki/Ekanite

    Clear and well-colored stones are rare as the radioactivity tends to degrade the crystal matrix over time in a process known as metamictization. The type locality is Eheliyagoda, Ratnapura District, Sabaragamuwa Province, Sri Lanka, [2] where it was first described in 1955 by F. L. D. Ekanayake, a Sri Lankan scientist, [5] [6] and it is named ...

  5. List of sapphires by size - Wikipedia

    en.wikipedia.org/wiki/List_of_sapphires_by_size

    Color Location Ref Star of Adam: Sri Lanka 2015 1,404.49 carats (280.898 g) Star Blue Anonymous owner [3] Black Star of Queensland: Australia 1938 733 carats (146.6 g) Star Black Anonymous owner [4] Star of India: Sri Lanka 563.4 carats (112.68 g) Star Blue-gray American Museum of Natural History, New York [5] Queen Marie of Romania: Sri Lanka

  6. 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 ...

  7. Moonstone (gemstone) - Wikipedia

    en.wikipedia.org/wiki/Moonstone_(gemstone)

    In more recent history, moonstone became popular during the Art Nouveau period; French goldsmith René Lalique and many others created a large quantity of jewellery using this stone. [5] The moonstone is the Florida State Gemstone; it was designated as such in 1970 to commemorate the Moon landings, which took off from Kennedy Space Center ...

  8. Category:Gems of Sri Lanka - Wikipedia

    en.wikipedia.org/wiki/Category:Gems_of_Sri_Lanka

    Pages in category "Gems of Sri Lanka" ... Star of India (gem) This page was last edited on 2 January 2018, at 17:00 (UTC). Text is available under the Creative ...

  9. The Star of Adam - Wikipedia

    en.wikipedia.org/wiki/The_Star_of_Adam

    [9]: 374–375 A leading gem and jewelry dealer in the country confirmed to the BBC that it was the largest blue star sapphire in the world. [2] In an interview to BBC Earth, Simon Redfern, mineral scientist from the University of Cambridge, said "the stone could have formed within the granite rocks of Sri Lanka's highlands. It was able to grow ...

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