Lapis Lazuli is a legendary mineral of rich blue color that has captivated humanity for millennia. Known for its deep, royal hue, it is a complex silicate mineral belonging to the sodalite group. Its unique appearance is often complemented by picturesque inclusions of golden pyrite, reminiscent of a starry sky, and white calcite veins, which create an unparalleled natural pattern on each specimen.
The history of Lapis Lazuli spans over 6000 years, with its first known deposits located in the mountains of Afghanistan. This stone was highly prized by ancient civilizations of Egypt, Mesopotamia, Greece, and Rome. Pharaohs adorned their tombs with it, and it was used to create amulets, seals, jewelry, and inlays. From powdered Lapis Lazuli, the precious pigment ultramarine was produced, used by the greatest Renaissance artists, such as Michelangelo and Vermeer, to depict the heavens and the robes of the Virgin Mary.
The intense blue color of Lapis Lazuli is due to the presence of trisulfur anions (S₃⁻) in its crystal structure. Variations in sulfur concentration and the presence of other elements can influence the stone's hue – from deep indigo to lighter blue or greenish-blue. It is this combination of rich blue with contrasting inclusions that makes Lapis Lazuli exceptionally appealing to collectors and jewelers. For centuries, Lapis Lazuli has been attributed various properties, considered a stone of wisdom, truth, and inner harmony. In many cultures, it symbolized the heavens and spiritual enlightenment.
Today, Lapis Lazuli remains a sought-after stone. It is used for crafting cabochons, beads, carved figures, and exclusive jewelry pieces. Thanks to its rich history, unique beauty, and vibrant color, Lapis Lazuli is a valuable specimen for any mineralogical collection and an excellent material for creating exquisite works.
Physical properties
Chemical formula
(Na,Ca)₈(AlSiO₄)₆(SO₄,S,Cl)₂
Hardness
5 - 5.5
Crystal system
Cubic
Transparency
Opaque
Luster
Vitreous to dull/greasy
Color
Intense blue, azure, violet-blue; often with inclusions of white calcite and golden pyrite
Specific gravity
2.7 - 2.9 (may be lower in aggregates with calcite)
Jewelry with this mineral
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