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Lapis lazuli (UK: / ˌ l æ p ɪ s ˈ l æ z (j) ʊ l i, ˈ l æ ʒ ʊ-,-ˌ l i /; US: / ˈ l æ z (j) ə l i, ˈ l æ ʒ ə-,-ˌ l i /), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.
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This is an accepted version of this page This is the latest accepted revision, reviewed on 14 December 2024. For other color lists, see Lists of colors. This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "List of colors" alphabetical ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 December 2024. There is 1 pending revision awaiting review. Variety of the color blue For other uses, see Shades of Blue (disambiguation). "Shade of Blue" redirects here. For the song by Black Rebel Motorcycle Club, see Shade of Blue (song). For the R&B/funk band, see Shade of Blue (band). Blue ...
This is a list of blue inorganic pigments, both natural and synthetic: [26] Aluminium pigments. Ultramarine (PB29): a synthetic or naturally occurring sulfur-containing silicate mineral— Na 8–10 Al 6 Si 6 O 24 S 2–4 (generalized formula) Persian blue: made by grinding up the mineral Lapis lazuli.
The ancients also referred to lapis-lazuli as sapphire, which is likewise a blue stone, often speckled with shining pyrites giving it the appearance of being sprinkled with gold dust. It is composed of silica, alumina, and alkali and is an opaque substance easily engraved. Debate still continues as to which stone is precisely referred to in the ...
The color azure ultimately takes its name from the vivid-blue gemstone lapis lazuli, a metamorphic rock. Lapis is the Latin word for "stone" and lāzulī is the genitive form of the Medieval Latin lāzulum, which is taken from the Arabic لازورد lāzaward [laːzwrd] (listen ⓘ), itself from the Persian لاژورد lāžaward, which is ...
Importing lapis lazuli by caravan across the desert from Afghanistan to Egypt was very expensive. Beginning in about 2500 BC, the ancient Egyptians began to produce their own blue pigment known as Egyptian blue by grinding silica , lime , copper , and alkalai , and heating it to 800 or 900 °C (1,470 or 1,650 °F).
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