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  2. Ruby - Wikipedia

    en.wikipedia.org/wiki/Ruby

    The Montepuez ruby mine in northeastern Mozambique is situated on one of the most significant ruby deposits in the world, [22] although, rubies were only discovered here for the first time in 2009. In less than a decade, Mozambique has become the world's most productive source for gem-quality ruby.

  3. Ruby Falls - Wikipedia

    en.wikipedia.org/wiki/Ruby_Falls

    Ruby Falls Cave has no natural openings. It was discovered in 1928, and so lacks various artifacts often associated with caves in the southeastern United States. In 1905, the natural entrance to Lookout Mountain Cave was closed during the construction of a railway tunnel. [2]

  4. List of individual gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_individual_gemstones

    Emerald of Saint Louis, [5] 51.60 carats cut; discovered in Austria, probably Habachtal, resides in the National Museum of Natural History, Paris Gachalá Emerald [ 6 ] Mogul Mughal Emerald , 217.80 carats cut; mined in Colombia and cut in the Mughal empire in Hijri year 1107 (1695–1696), resides in the Museum of Islamic Art, Doha , Qatar [ 7 ...

  5. Gemstone industry in Greenland - Wikipedia

    en.wikipedia.org/wiki/Gemstone_industry_in_Greenland

    The exploration team discovered ruby in association with the minerals sapphirine, kornerupine, pargasite, and phlogopite, confirming six ruby deposits in the Fiskenaesset district. [ 6 ] During the 1970s, junior Canadian mining companies, among them Platinomino, Fiscannex, and Valhalla, explored the region for chromite and platinum and ...

  6. Ruby chocolate - Wikipedia

    en.wikipedia.org/wiki/Ruby_chocolate

    Ruby chocolate is a style or distinct variety of chocolate that is pink or purple in colour. Barry Callebaut , a Belgian–Swiss cocoa company, introduced it as a distinct product on 5 September 2017 after beginning development of their product in 2004.

  7. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    Ruby was the first gemstone to be synthesized by Auguste Verneuil with his development of the flame-fusion process in 1902. [59] Synthetic corundum continues to be made typically by flame-fusion as it is most cost-effective, but can also be produced through flux growth and hydrothermal growth.

  8. Painite - Wikipedia

    en.wikipedia.org/wiki/Painite

    Painite is a very rare borate mineral.It was first found in Myanmar by British mineralogist and gem dealer Arthur C.D. Pain who misidentified it as ruby, until it was discovered as a new gemstone in the 1950s.

  9. Timeline of the discovery and classification of minerals

    en.wikipedia.org/wiki/Timeline_of_the_discovery...

    Note: René Haüy discovered that emeralds and beryls crystals are geometrically identical. He asked Vauquelin for a chemical analysis, and so Vauquelin found a new "earth" (beryllium oxide). Carl Wilhelm Scheele (1742 –1786), discovery of oxygen with Priestley; identification of molybdenum, tungsten, barium, hydrogen, and chlorine.