Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A relatively rare blue, violet-blue, or greenish-blue translucent mineral, Na4-5Al3Si3O12S, the chief component of lapis lazuli.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A mineral of metamorphosed limestones. Lazurite forms the gemstone lapis lazuli, and crushed lazurite provided the ultramarine color in artists' paint of the old masters. sodalite and lazurite form the sodalite group of silicate minerals. Chemical composition: Sodium aluminum silicate with sulphur, .

from The Century Dictionary and Cyclopedia

  • n. The sodium-aluminium silicate which forms the essential part of the ornamental stone lapis lazuli.

Etymologies

Medieval Latin lāzur, lapis lazuli (from Arabic lāzaward; see lapis lazuli) + -ite1.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Medieval Latin lazur ("lapis lazuli"), from Arabic  (lzaward), because of the similar, distinctive blue coloring. (Wiktionary)

Examples

  • The first northern case (55) is covered with various Sulphates, or metals in combination with sulphuric acid, exhibiting beautiful crystals and colours, including sulphate of magnesia from Oregon; sulphate of zinc, or white vitriol; sulphate of iron, or green vitriol; and the splendid blue sulphates of copper from Hungary; beautiful sulphates of lead from Anglesea; sulphates of alumina; common alum; and the splendid specimens of lazurite, or lapis-lazuli, --

    How to See the British Museum in Four Visits

  • 1828 M. Guimet succeeded in making an artificial ultramarine, known now extensively as French ultramarine, which is little, if at all, inferior in beauty to lazurite.

    How to See the British Museum in Four Visits

Comments

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  • By the afternoon though, when the sky turned lazurite, she'd flag; the whole garden would subside.

    - Romesh Gunesekera, Heaven's Edge, 2003

    August 20, 2008