mineral
Lapis Lazuli and Amazonite
Complex silicate mineral aggregates (Lazurite, Calcite, Pyrite & Microcline feldspar)
Lapis Lazuli has a Mohs hardness of 5 to 5.5, deep blue color, vitreous to greasy luster, and contains golden pyrite inclusions. Amazonite has a Mohs hardness of 6, vibrant blue-green color, vitreous luster, and triclinic crystal system.
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Physical properties
Lapis Lazuli has a Mohs hardness of 5 to 5.5, deep blue color, vitreous to greasy luster, and contains golden pyrite inclusions. Amazonite has a Mohs hardness of 6, vibrant blue-green color, vitreous luster, and triclinic crystal system.
Formation & geological history
Formed through regional and contact metamorphism of limestone (Lapis) and in pegmatites or granitic rocks (Amazonite).
Uses & applications
Used in ornamental carvings, jewelry, inlay work, and as collector specimens.
Geological facts
Lapis lazuli has been used since ancient times by civilizations like the Egyptians for amulets and royal ornaments, while amazonite was named after the Amazon River, though it is not actually found there.
Field identification & locations
Easily identified by their distinct rich blue (lapis) and mottled blue-green (amazonite) colors. Lapis is famously sourced from Afghanistan, and amazonite is found globally including in Russia, the USA, and Brazil.
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