metamorphic
Lapis Lazuli (Carved)
Lazurite-rich metamorphic rock (approx. (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
Hardness: 5-5.5 (Mohs scale), Color: Deep royal blue often with gold pyrite flecks, Luster: Vitreous to greasy, Structure: Isometric (granular aggregate), Cleavage: Imperfect
- Hardness
- 5-5
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Physical properties
Hardness: 5-5.5 (Mohs scale), Color: Deep royal blue often with gold pyrite flecks, Luster: Vitreous to greasy, Structure: Isometric (granular aggregate), Cleavage: Imperfect
Formation & geological history
Formed via contact metamorphism of limestone or marble. Major deposits date back over 6,000 years, primarily in the Sar-e-Sang mines of Afghanistan.
Uses & applications
Ornamental arts, jewelry carving, pigment (historically ultramarine), and metaphysical collecting.
Geological facts
Lapis lazuli was the source of the world's most expensive pigment, ultramarine, used by Renaissance painters. It was highly prized by Ancient Egyptian pharaohs.
Field identification & locations
Identify by its characteristic 'denim' or deep blue color, presence of golden pyrite inclusions, and white calcite veining. Authentic lapis smells faintly of sulfur when ground or scratched.
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