LAPIS LAZULI

a metal, sometimes ‘azure stone,’ composed of silica alumina with traces of sulphuric soda, and lime; generally of a rich color, although some varieties are tinted green, red, or violet; has vitrelustre, is opaque, and easily broken; sometimes spotted, or banded with Found a ociated with crystal limestone in schists or granites, in Siberia, Tibet, Chile, Andes, and Asia. Used by ancients for ornamental vases; now for mosaics for manufacture of ultramarine