lazurite

[ laz-uh-rahyt, lazh-uh- ]

noun

1. a mineral, sodium aluminum silicate and sulfide, Na 5 Al 3 Si 3 O 12 S 3 , occurring in deep-blue crystals, used for ornamental purposes.

lazurite

/ ˈlæzjʊˌraɪt /

noun

1. a rare blue mineral consisting of a sodium–calcium–aluminium silicate and sulphide: used as the gemstone lapis lazuli. Formula: (Na,Ca) 8 (AlSiO 4 ) 6 (SO 4 ,S,Cl) 2

Word History and Origins

Origin of lazurite¹

1890–95; < Medieval Latin lāzur azure + -ite ¹

Word History and Origins

Origin of lazurite¹

C19: from Medieval Latin lāzur lapis lazuli