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  2. Chatoyancy - Wikipedia

    en.wikipedia.org/wiki/Chatoyancy

    In gemology, chatoyancy (/ ʃ ə ˈ t ɔɪ. ən s i / shə-TOY-ən-see), also called chatoyance or the cat's eye effect, [1] is an optical reflectance effect seen in certain gemstones, woods, and carbon fiber. Coined from the French œil de chat, meaning 'cat's eye'. The chatoyant effect is typically characterized by one or more well-defined ...

  3. Tiger's eye - Wikipedia

    en.wikipedia.org/wiki/Tiger's_eye

    Tiger's eye (also called tiger eye) is a chatoyant gemstone that is usually a metamorphic rock with a golden to red-brown colour and a silky lustre.As members of the quartz group, tiger's eye and the related blue-coloured mineral hawk's eye gain their silky, lustrous appearance from the parallel intergrowth of quartz crystals and altered amphibole fibres that have mostly turned into limonite.

  4. Siltstone - Wikipedia

    en.wikipedia.org/wiki/Siltstone

    Holtzclaw siltstone, Louisville, Kentucky. There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock (clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles.

  5. List of longest masonry arch bridge spans - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_masonry...

    There are 18 stone arch bridges with spans exceeding 100 m (330 ft). [1] There are probably several dozens of stone arches exceeding 40m in the Fujian province only. [2] Almost all bridges were built after 1950. This list contains the longest masonry arch spans ever built being at least 50 metres (164 ft).

  6. 10 of the tallest abandoned skyscrapers around the world - AOL

    www.aol.com/10-tallest-abandoned-skyscrapers...

    One of New Orleans' tallest buildings has become a danger in the decades since it was erected in the 1960s. While the $15.5 million building had a few residential units, it was mainly designed for ...

  7. Chatoyance - Wikipedia

    en.wikipedia.org/?title=Chatoyance&redirect=no

    This page was last edited on 8 August 2005, at 02:37 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...

  8. 5-Year-Old Answers Front Door with Loaded Gun to Police, Has ...

    www.aol.com/5-old-answers-front-door-115057182.html

    A 5-year-old child had to be disarmed by police after answering the front door holding a loaded handgun in Michigan. The child opened the front door carrying the armed weapon to a cadet who came ...

  9. Sharon Stone's 'Mind Is Completely Blown' After Learning Her ...

    www.aol.com/sharon-stones-mind-completely-blown...

    It seems Sharon Stone is not the only powerful person in her family.. In PEOPLE's exclusive look at the actress' appearance on the Jan. 28 episode of Finding Your Roots, Stone, 66, is at a loss ...