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A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide).Other varieties of gem-quality corundum are called sapphires.Ruby is one of the traditional cardinal gems, together with amethyst, sapphire, emerald, and diamond. [1]
Ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, alongside amethyst, sapphire, emerald, and diamond. [3]
The ruby was discovered by Dubai-based FURA Gems in its mine in Mozambique on July 21, 2022. [2] [3] [4]Before its unveiling and cutting, Daniel Nyfeler, managing director of Gübelin Gem Lab, stated: "the Estrela de Fura ruby is likely to yield an intense, saturated red colour once fully and properly faceted with adequate proportions, is relatively free of eye-visible inclusions.
Corundum is a crystalline form of aluminium oxide (Al 2 O 3) typically containing traces of iron, titanium, vanadium, and chromium. [3] [4] It is a rock-forming mineral.It is a naturally transparent material, but can have different colors depending on the presence of transition metal impurities in its crystalline structure. [7]
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A 7-year-old boy accidentally shot and killed his 2-year-old brother inside a truck parked in a California shopping center, authorities said.. On Monday, just before 4 p.m. local time, the boy ...
At the time the ruby then weighed just over 140 carats (28 g), but was very heavily scratched, and a few carats were removed in the re-polishing. The re-polishing also helped to center the stone's star. Articles in the New York World-Telegram and The Sun in 1953 mentioned this fabulous gemstone. The Rosser Reeves Ruby is on display at the ...