lapis lazuli


la·pis la·zu·li

noun \ˌlap-əs-ˈla-zə-lē, -ˈla-zhə-\

: a deep blue stone that is used in jewelry

Full Definition of LAPIS LAZULI

:  a semiprecious stone that is usually rich azure blue and is essentially a complex silicate often with spangles of pyrites —called also lapis


Middle English, from Medieval Latin, from Latin lapis + Medieval Latin lazuli, genitive of lazulum lapis lazuli, from Arabic lāzaward — more at azure
First Known Use: 15th century

lapis lazuli

noun    (Concise Encyclopedia)

Semiprecious stone valued for its deep-blue colour caused by the presence of the mineral lazurite, which is the source of the pigment ultramarine. Lapis lazuli is not a single mineral but an intergrowth lazurite with calcite, pyroxene, and commonly small grains of pyrite. The most important mines are in Afghanistan and Chile. Much of what is sold as lapis is an artificially dyed jasper from Germany that shows colourless specks of clear, crystallized quartz and never the goldlike flecks of pyrite that are characteristic of lapis lazuli.


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