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  2. Chrysoberyl - Wikipedia

    en.wikipedia.org/wiki/Chrysoberyl

    An alexandrite cat's eye is a chrysoberyl cat's eye that changes color. "Milk and honey" is a term commonly used to describe the color of the best cat's eyes. The effect refers to the sharp milky ray of white light normally crossing the cabochon as a center line along its length and overlying the honey-colored background.

  3. Chatoyancy - Wikipedia

    en.wikipedia.org/wiki/Chatoyancy

    Tiger's eye Tiger's eye. 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 ...

  4. Cat's eye - Wikipedia

    en.wikipedia.org/wiki/Cat's_eye

    Cat eye glasses, a style of horn-rimmed glasses designed for women; Cat's eye (toy), a kind of toy marble; Cat's Eye (cocktail), a gin-based cocktail; Cat's eye (road), a type of road marker using retroreflectors; Cat eye tube, an electron tube used as a visual indicator

  5. Actinolite - Wikipedia

    en.wikipedia.org/wiki/Actinolite

    Another gem variety is the chatoyant form known as cat's-eye actinolite. This stone is translucent to opaque, and green to yellowish green color. This variety has had the misnomer jade cat's-eye. Transparent actinolite is rare and is faceted for gem collectors. Major sources for these forms of actinolite are Taiwan and Canada.

  6. 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 .

  7. Cat's eye (road) - Wikipedia

    en.wikipedia.org/wiki/Cat's_eye_(road)

    Double-ended cat's eye is Shaw's original design and marks road centre-line. The inventor of cat's eyes was Percy Shaw of Boothtown, Halifax, West Yorkshire, England.When the tram-lines were removed in the nearby suburb of Ambler Thorn, he realised that he had been using the polished steel rails to navigate at night. [3]

  8. List of gemstones by species - Wikipedia

    en.wikipedia.org/wiki/List_of_gemstones_by_species

    Eilat stone; Epidosite; Glimmerite; Goldstone (glittering glass) Tiger's eye; Helenite (artificial glass made from volcanic ash) Iddingsite; Kimberlite; Lamproite; Lapis lazuli; Libyan desert glass; Llanite; Maw sit sit; Moldavite; Obsidian; Apache tears; Pallasite; Peridotite (also known as olivinite) Siilinjärvi carbonatite; Soapstone (also ...

  9. Percy Shaw - Wikipedia

    en.wikipedia.org/wiki/Percy_Shaw

    The retroreflective glass spheres shown set into a cat's eye in the United Kingdom. Shaw was inventive, even at an early age, but his most famous invention was the cat's eye for lighting the way along roads in the dark. There are several stories about how he came up with the idea.