mineral
Lapis Lazuli
Complex silicate rock (lazurite, calcite, pyrite)
AI-generated identification · may be incorrectHardness of 5 to 5.5 on the Mohs scale, deep blue color often flecked with gold pyrite, vitreous to greasy luster, opaque transparency.
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Physical properties
Hardness of 5 to 5.5 on the Mohs scale, deep blue color often flecked with gold pyrite, vitreous to greasy luster, opaque transparency.
Formation & geological history
Formed through contact metamorphism of limestone, predominantly originating from ancient tectonic processes in regions like Afghanistan.
Uses & applications
Extensively used in high-end jewelry, decorative carvings, mosaics, and historically ground into ultramarine pigment.
Geological facts
Prized by ancient civilizations such as the Egyptians and Mesopotamians, lapis lazuli was frequently used in royal burial artifacts.
Field identification & locations
Easily identified in the field by its distinct rich blue coloration combined with brassy pyrite inclusions. Commonly sourced from Afghanistan, Chile, and Russia.
