lazurite

[ laz-uh-rahyt, lazh-uh- ]
/ ˈlæz əˌraɪt, ˈlæʒ ə- /

noun

a mineral, sodium aluminum silicate and sulfide, Na5Al3Si3O12S3, occurring in deep-blue crystals, used for ornamental purposes.

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Origin of lazurite

1890–95; < Medieval Latin lāzur azure + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for lazurite

lazurite
/ (ˈlæzjʊˌraɪt) /

noun

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 Origin for lazurite

C19: from Medieval Latin lāzur lapis lazuli
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012