-ˌrīt noun
( -s )
Etymology: German lasurit, from Medieval Latin lazur lapis lazuli (from Arabic lāzaward ) + German -it -ite — more at azure
: a mineral (Na,Ca) 8 (Al,Si) 12 O 24 (S,SO 4 ) occurring as the chief constituent of lapis lazuli, isomorphous with sodalite, and composed of a sodium silicate containing sulfur