lazurite

(lazyə rīt′, laz̸h-)

noun

a very rare, hard, bluish, crystalline mineral, (Na,Ca)(Al,Si)(O,S)[SO,Cl(OH)], that is the main component of lapis lazuli

See lazurite in American Heritage Dictionary 4

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

Origin:

Origin: Medieval Latin lāzur, lapis lazuli (from Arabic lāzaward; see lapis lazuli)

Origin: + -ite1

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