Celestite containing shiny pyrite
Lapis Lazuli with sparkling pyrite is a beautiful mineral combination mainly composed of lapis lazuli and pyrite. The chemical formula of lapis lazuli is (Na, Ca) ₈ (AlSiO ₄) ₆ (S, SO ₄, Cl) ₂, usually appearing dark blue, while pyrite is distributed in lapis lazuli with its golden yellow spots. lapis lazuli belongs to the equiaxed crystal system and usually exists in block form.