Lapis is a rock and not a mineral because it is made up from various other minerals. To be a mineral it would have one constituent only, and Lapis has several including Lazurite, Sodium, Aluminum, Silicon, Oxygen, Sulfur and Chlorine. Most Lapis contains Calcite, Sodalite and Pyrite. The best color is an intense blue that is lightly dusted with small flecks of Pyrite. Lapis takes an excellent polish and has been made into jewelry, carvings, boxes, mosaics and ornamental objects.