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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.
Queen Puabi's headgear contains four different wreaths. The first two wreaths are almost identical, with twenty gold poplar leaves separated by two strings of lapis lazuli and carnelian beads. [1] The importation of materials for the headdress demonstrates Ur's political and cultural significance as a hub of maritime and commercial trade. [4]
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 ...
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English: Large lapis lazuli specimen as seen at the National Museum of Natural History 2021 'Objects of Wonder' exhibit. This particular piece weighs over 100kg (about 250lbs). This particular piece weighs over 100kg (about 250lbs).
The Greek term for sapphire quite likely was instead used to refer to lapis lazuli. [72] During the Medieval Ages, European lapidaries came to refer to blue corundum crystal by "sapphire", a derivative of the Latin word for blue: sapphirus. [74] The sapphire is the traditional gift for a 45th wedding anniversary. [75]
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).
The beard is made of carved lapis lazuli tesserae on a silver backing. The tips of the bull's horns are also lapis lazuli, making this the only animal-shaped lyre at Ur to have horns tipped in a separate material. [1] The eyes of the bull are shell and lapis lazuli strung with copper wire. [4]
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