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  2. Emerald - Wikipedia

    en.wikipedia.org/wiki/Emerald

    Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium or sometimes vanadium. [2] Beryl has a hardness of 7.5–8 on the Mohs scale. [2] Most emeralds have many inclusions, [3] so their toughness (resistance to breakage) is

  3. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    A few gemstones are used as gems in the crystal or other forms in which they are found. Most, however, are cut and polished for usage as jewelry. The two main classifications are as follows: Stones cut as smooth, dome-shaped stones called cabochons or simply cab. These have been a popular shape since ancient time and are more durable than ...

  4. Ruby - Wikipedia

    en.wikipedia.org/wiki/Ruby

    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 word ruby comes from ruber, Latin for red. The color of a ruby is due to the presence of chromium.

  5. Superhard material - Wikipedia

    en.wikipedia.org/wiki/Superhard_material

    A superhard material is not necessarily "supertough". For example, the fracture toughness of diamond is about 7–10 MPa·m 1/2, [16] [17] which is high compared to other gemstones and ceramic materials, but poor compared to many metals and alloys – common steels and aluminium alloys have the toughness values at least 5 times higher. [18]

  6. Colombian emeralds - Wikipedia

    en.wikipedia.org/wiki/Colombian_emeralds

    Hooker Emerald Brooch – brooch made from a Colombian emerald from an unknown mine, possibly Muzo; Fura Emerald – the second-biggest emerald in the world, with 2.2 kilograms (4.9 lb) or 11,000 carat, found in Muzo, in 1999; Tena Emerald – the most valuable emerald in the world, 400 grams (0.88 lb) or 2,000 carat, found in Muzo, in 1999

  7. This shipwreck's gold, silver, and emeralds helped spawn a ...

    www.aol.com/shipwrecks-gold-silver-emeralds...

    In 1987, his recovery company surfaced a 100-carat emerald. As part of these salvage licenses, the treasure hunters kept 75% of what they found, and the remainder went to the Bahamian government.

  8. The 40 Best Affordable Jewelry Brands of 2024, Vetted and ...

    www.aol.com/37-best-affordable-jewelry-brands...

    Offering a wide selection of mixed metals and gemstones that are ethically-sourced and sustainably-made, our favorites include the snake stud earrings ($90; $81) and mini Athena necklace ($180 ...

  9. 6 Curtain Styles Designers Say Are Outdated (and What ... - AOL

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    Disposable decor is out, and longevity is in. “Sustainability and eco-friendliness are influencing curtain choices in 2025 by encouraging more durable, long-lasting options,” Matthews says.

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