Lapis Lazuli

[L, azure stone.] The name of a Larynx. mineral of a rich blue color, consist i i g chiefly of silica and alumina, with sulphates of soda, and iron in spots or veins. It is found in Persia, China, Chili, and Siberia, and is used for orna¬ mental purposes, especially for inlaid work. In the marble palace built by the Empre Catherine at St. Petersburg there are entire apartments in¬ laid with lapis laz ili. It was much esteemed by the ancients, who used it for engraving and for vases. Las