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  2. Jacinth - Wikipedia

    en.wikipedia.org/wiki/Jacinth

    Jacinth (/ ˈ dʒ æ s ɪ n θ /, [1] / ˈ dʒ eɪ s ɪ n θ /) [2] or hyacinth (/ ˈ h aɪ. ə s ɪ n θ /) [3] is a yellow-red to red-brown variety of zircon used as a gemstone. [ 4 ] In Exodus 28:19, one of the precious stones set into the hoshen (the breastplate worn by the High Priest of Israel ) is called, in Hebrew, leshem , which is ...

  3. List of Crayola crayon colors - Wikipedia

    en.wikipedia.org/wiki/List_of_Crayola_crayon_colors

    The color was introduced for Colors of Kindness. [6] No* No* No* No* No* No* Robin's Egg Blue #00CCCC 0 204 204 1993–present No No No Yes Yes Yes Teal Blue #008080 0 128 128 1990–2003 Light Blue #8FD8D8 143 216 216 1958 Aquamarine #95E0E8 149 224 232 1949–present Known as "Light Turquoise Blue", 1949–1958. [2] No No No No No Yes ...

  4. Interference colour chart - Wikipedia

    en.wikipedia.org/wiki/Interference_colour_chart

    When using the chart, it is important to remember these tips: Isotropic and opaque (metallic) minerals cannot be identified this way. The stage of the microscope should be rotated until maximum colour is found, and therefore, the maximum birefringence. Each mineral, depending on the orientation, may not exhibit the maximum birefringence.

  5. Zircon - Wikipedia

    en.wikipedia.org/wiki/Zircon

    The natural color of zircon varies between colorless, yellow-golden, red, brown, blue, and green. The name derives from the Persian zargun, meaning "gold-hued". [10] This word is changed into "jargoon", a term applied to light-colored zircons. The English word "zircon" is derived from Zirkon, which is the German adaptation of this word. [11]

  6. Color chart - Wikipedia

    en.wikipedia.org/wiki/Color_chart

    Color chips or color samples from a plastic pellet manufacturer that enables customers to evaluate the color range as molded objects to see final effects. A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or ...

  7. Lists of colors - Wikipedia

    en.wikipedia.org/wiki/Lists_of_colors

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  8. Cubic zirconia - Wikipedia

    en.wikipedia.org/wiki/Cubic_zirconia

    Color: only the rarest of diamonds are truly colorless, most having a tinge of yellow or brown to some extent. A cubic zirconia is often entirely colorless: equivalent to a perfect "D" on diamond's color grading scale. That said, desirable colors of cubic zirconia can be produced including near colorless, yellow, pink, purple, green, and even ...

  9. Diamond simulant - Wikipedia

    en.wikipedia.org/wiki/Diamond_simulant

    Applying heat treatment to brown zircon can create several bright colors: these are most commonly sky-blue, golden yellow, and red. Blue zircon is very popular, but it is not necessarily color stable; prolonged exposure to ultraviolet light (including the UV component in sunlight) tends to bleach the stone.